COMPOSITE SUCKER ROD SEGMENT

FIELD

The present disclosure relates to structural members made from composite material. In some embodiments, for example, the structural member is particularly suited for use as a sucker rod.

BACKGROUND

Structural members, for example, rods, that are subject to repeated, high stress cycles, over time, are prone to failure. Structural members made of steel or other metal material are expensive to manufacture, and can be expensive to transport. Moreover, such structural members are associated with increased installation costs due to the overall weight of the structural member. Structural members made from metal material may also be prone to rust and corrosion, especially when used in certain environments.

Structural members can be comprised of non-metallic materials, such as fiber-reinforced composites, i.e. carbon fiber or glass fiber and resin, to define a composite rod, wherein a plurality of individual fibers impregnated with a suitable resin are cut to length, subjected to heat and pressure and allowed to cool, such that the individual fibers are encased within a hardened resin or supporting matrix material.

The overall strength of a composite rod is a function of the stress/strain distribution through the body of the member. Premature failure of a continuous fiber composite rod can occur when non-ideal fiber alignment leads to stress concentrations or strain limitations of shorter fiber paths.

Connection between composite rods and/or connection of a composite rod to another object, in some instances, also presents challenges. When loads and/or forces applied to composite rods are applied in such a manner that the loads and/or forces act primarily on the resin or other supporting matrix material rather than on the fibers themselves, the composite rod may be vulnerable to creep, wherein the resin or supporting matrix material pulls away from and/or exposes the fibers rendering the fibers more prone to failure.

Accordingly, structural members and/or composite rods that offer improved performance characteristics, especially in response to cyclic loads, are desirable. Structural members and/or composite rods that facilitate connection of the structural members and/or composite rod to another structural member and/or composite rod, or another object, are also desirable.

SUMMARY

In one aspect, there is provided a sucker rod segment, comprising: an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; an uphole wedge configuration counterpart; an uphole wedge configuration; a composite rod; a downhole wedge configuration; a downhole wedge configuration counterpart; and a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; wherein: the sucker rod segment is connectable to an adjacent uphole sucker rod segment via the uphole rod segment connector; the sucker rod segment is connectable to an adjacent downhole sucker rod segment via the downhole rod segment connector; the uphole wedge configuration is wedged between the uphole wedge configuration counterpart and an uphole portion of the composite rod; and the downhole wedge configuration is wedged between the downhole wedge configuration counterpart and a downhole portion of the composite rod; the uphole rod segment connector, the uphole wedge configuration counterpart, the uphole wedge configuration, the composite rod, the downhole wedge configuration, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the uphole wedge configuration, between the composite rod and the uphole wedge configuration counterpart, is effectuated; wedging of the downhole wedge configuration, between the composite rod and the downhole wedge configuration counterpart, is effectuated; a tensile force, having a downhole direction, is applied to the composite rod; a tensile force, having an uphole direction, is applied to the composite rod; a compressive force is applied to the uphole portion of the composite rod in response to the wedging of the uphole wedge configuration; and a compressive force is applied to the downhole portion of the composite rod in response to the wedging of the downhole wedge configuration.

In another aspect, there is provided a sucker rod segment, comprising: a wedging-effective rod including a composite rod, an uphole wedge configuration, and a downhole wedge configuration; wherein: the uphole wedge configuration is connected to an uphole portion of the composite rod such that the uphole wedge configuration is integral with the composite rod; and the downhole wedge configuration is connected to a downhole portion of the composite rod such that the downhole wedge configuration is integral with the composite rod; an uphole wedge configuration counterpart; a downhole wedge configuration counterpart; and an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; and a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; wherein: the wedging-effective rod is wedged within the uphole wedge configuration counterpart via the uphole wedge configuration; the wedging-effective rod is wedged within the downhole wedge configuration counterpart via the downhole wedge configuration; the uphole rod segment connector, the uphole wedge configuration counterpart, the wedging-effective rod, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the wedging-effective rod, within the uphole wedge configuration counterpart, via the uphole wedge configuration, is effectuated; wedging of the wedging-effective rod, within the downhole wedge configuration counterpart, via the downhole wedge configuration, is effectuated; a tensile force, having a downhole direction, is applied to the composite rod; a tensile force, having an uphole direction, is applied to the composite rod; a compressive force is applied to the uphole portion of the composite rod in response to the wedging of the wedging-effective rod within the uphole wedge configuration counterpart; and a compressive force is applied to the downhole portion of the composite rod in response to the wedging of the wedging-effective rod configuration within the downhole wedge configuration counterpart.

In another aspect, there is provided a sucker rod segment, comprising: an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; an uphole wedge configuration counterpart; an uphole wedge configuration; a composite rod; a downhole wedge configuration; a downhole wedge configuration counterpart; and a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; wherein: the sucker rod segment is connectable to an adjacent uphole sucker rod segment via the uphole rod segment connector; the sucker rod segment is connectable to an adjacent downhole sucker rod segment via the downhole rod segment connector; the uphole wedge configuration is wedged between the uphole wedge configuration counterpart and an uphole portion of the composite rod, such that an uphole wedged configuration is established; the downhole wedge configuration is wedged between the downhole wedge configuration counterpart and a downhole portion of the composite rod, such that a downhole wedged configuration is established; the uphole rod segment connector, the uphole wedge configuration counterpart, the uphole wedge configuration, the composite rod, the downhole wedge configuration, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the uphole wedge configuration, between the composite rod and the uphole wedge configuration counterpart, is effectuated; wedging of the downhole wedge configuration, between the composite rod and the downhole wedge configuration counterpart, is effectuated; a tensile force, having a downhole direction, is applied to the composite rod; a tensile force, having an uphole direction, is applied to the composite rod; a compressive force is applied to the uphole portion of the composite rod in response to the wedging of the uphole wedge configuration; and a compressive force is applied to the downhole portion of the composite rod in response to the wedging of the downhole wedge configuration; and further comprising: an uphole wedge configuration retainer; and a downhole wedge configuration retainer; wherein: the uphole wedge configuration retainer and the uphole wedge configuration are co-operatively configured such that the uphole wedge configuration retainer opposes movement, of the uphole wedge configuration, that is effective for defeating the uphole wedged configuration; and the downhole wedge configuration retainer and the downhole wedge configuration are co-operatively configured such that the downhole wedge configuration retainer opposes movement, of the downhole wedge configuration, that is effective for defeating the downhole wedged configuration.

In another aspect, there is provided a sucker rod segment, comprising: an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; a composite rod; an uphole wedge configuration; an uphole barrel defining an uphole barrel passage that is defined by an uphole barrel passage-defining surface; a uphole wedge configuration counterpart, defined by the uphole barrel passage-defining surface; a downhole wedge configuration; a downhole barrel defining a downhole barrel passage that is defined by a downhole barrel passage-defining surface; and a downhole wedge configuration counterpart, defined by the downhole barrel passage-defining surface; wherein: the sucker rod segment is connectable to an adjacent uphole sucker rod segment via the uphole rod segment connector; the sucker rod segment is connectable to an adjacent downhole sucker rod segment via the downhole rod segment connector; the uphole wedge configuration is wedged, within the uphole barrel passage, between the uphole wedge configuration counterpart and an uphole portion of the composite rod, such that an uphole wedged configuration is established; the downhole wedge configuration is wedged, within the downhole barrel passage, between the downhole wedge configuration counterpart and a downhole portion of the composite rod, such that a downhole wedged configuration is established; the composite rod extends, downhole, from the uphole barrel, through an uphole barrel port of the barrel port, and into the downhole barrel, through a downhole barrel port; the uphole wedge configuration is axially spaced apart from the uphole barrel port along an axis parallel to the central longitudinal axis of the uphole barrel passage, such that an unsupported uphole composite rod portion, of the composite rod, is established within the uphole barrel passage; the downhole wedge configuration is axially spaced apart from the downhole barrel port along an axis parallel to the central longitudinal axis of the downhole barrel passage, such that an unsupported downhole composite rod portion, of the composite rod, is established within the downhole barrel passage; the unsupported uphole composite rod is spaced apart from the uphole barrel passage-defining surface by a minimum spacing distance such that the minimum spacing distance, between the unsupported uphole composite rod portion and the uphole barrel passage-defining surface, is less than 60/1000 of an inch; the unsupported downhole composite rod is spaced apart from the downhole barrel passage-defining surface by a minimum spacing distance such that the minimum spacing distance, between the unsupported downhole composite rod portion and the downhole barrel passage-defining surface, is less than 60/1000 of an inch; the uphole rod segment connector, the uphole wedge configuration counterpart, the uphole wedge configuration, the composite rod, the downhole wedge configuration, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the uphole wedge configuration, between the composite rod and the uphole wedge configuration counterpart, is effectuated; wedging of the downhole wedge configuration, between the composite rod and the downhole wedge configuration counterpart, is effectuated; a tensile force, having a downhole direction, is applied to the composite rod; a tensile force, having an uphole direction, is applied to the composite rod; a compressive force is applied to the uphole portion of the composite rod in response to the wedging of the uphole wedge configuration; and a compressive force is applied to the downhole portion of the composite rod in response to the wedging of the downhole wedge configuration.

In another aspect, there is provided a sucker rod segment, comprising: a composite rod; an uphole segment connector; an uphole wedge configuration; an uphole wedge configuration counterpart; a downhole wedge configuration; a downhole wedge configuration counterpart; and a downhole rod segment connector; wherein: the sucker rod segment is connectable to an adjacent uphole sucker rod segment via the uphole rod segment connector; the sucker rod segment is connectable to an adjacent downhole sucker rod segment via the downhole rod segment connector; the uphole wedge configuration is integral with an uphole portion of the composite rod; the uphole wedge configuration counterpart is integral with the uphole rod segment connector; the downhole wedge configuration is integral with a downhole portion of the composite rod; the downhole wedge configuration counterpart is integral with the downhole rod segment connector; the uphole wedge configuration is wedged between the uphole wedge configuration counterpart and the uphole portion of the composite member; and the downhole wedge configuration is wedged between the downhole wedge configuration counterpart and the downhole portion of the composite member.

In another aspect, there is provided a sucker rod segment, comprising: a composite member; a wedge configuration; a wedge configuration counterpart; an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; wherein: the sucker rod segment is connectable to an adjacent uphole sucker rod segment via the uphole rod segment connector; the sucker rod segment is connectable to an adjacent downhole sucker rod segment via the downhole rod segment connector; the wedge configuration is wedged between the composite rod and the wedge configuration counterpart; and the uphole rod segment connector, the uphole wedge configuration counterpart, the uphole wedge configuration, the composite rod, the downhole wedge configuration, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the wedge configuration, between the composite rod and the wedge configuration counterpart, is effectuated; a tensile force, having a downhole direction, is applied to the composite rod; and a tensile force, having an uphole direction, is applied to the composite rod; and a compressive force is applied to the composite rod via the wedging.

In another aspect, there is provided a sucker rod segment, comprising: a wedging-effective rod including a composite rod and a wedge configuration, wherein the wedge configuration is connected to the composite rod such that the wedge configuration is integral with the composite rod; and a wedge configuration counterpart; an uphole rod segment connector for connection to an adjacent uphole sucker rod segment; and a downhole rod segment connector for connection to an adjacent downhole sucker rod segment; wherein: the wedging-effective rod is wedged within the wedge configuration counterpart via the wedge configuration; and the uphole rod segment connector, the uphole wedge configuration counterpart, the wedging-effective rod, the downhole wedge configuration counterpart, and the downhole rod segment connector are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied to the downhole rod segment connector, and while a tensile force, having an uphole direction, is being applied to the uphole rod segment connector: wedging of the wedging-effective rod, within the wedge configuration counterpart, is effectuated; a compressive force is applied to the composite rod via the wedging; a tensile force, having a downhole direction, is applied to the composite rod; and a tensile force, having an uphole direction, is applied to the composite rod.

In another aspect, there is provided a method of fusing a wedge configuration to a composite rod, comprising overmolding the wedge configuration to the composite rod.

In another aspect, there is provided a method of integrating a wedge configuration with a composite rod; wherein: the wedge configuration includes a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer; and the composite rod includes: a continuous fiber configuration; and a matrix material configuration that includes a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer; wherein the method comprises: while a composite rod is emplaced within a cavity of a mold, emplacing a wedge configuration-forming liquid thermoplastic material within the cavity under joinder-effective conditions such that the wedge configuration-forming liquid thermoplastic material becomes disposed in contact engagement with the composite rod, with effect that the composite rod is heated to produce an interactable matrix material configuration-derived liquid thermoplastic material at an interface between the wedge configuration-forming liquid thermoplastic material and the composite rod, with effect that mixing of the wedge configuration-forming liquid thermoplastic material and the interactable matrix material configuration-derived liquid thermoplastic material is effectuated, with effect that a liquid thermoplastic mixture is obtained, such that an intermediate liquid thermoplastic material, including the liquid thermoplastic mixture, is produced and then cooled, with effect that the intermediate liquid thermoplastic material hardens, with effect that the wedge configuration becomes joined to the composite rod.

In another aspect, there is provided a method of manufacturing a sucker rod segment, wherein the sucker rod segment includes a composite rod, wherein the method comprises: overmolding an uphole wedge configuration to an uphole portion of the composite rod, with effect that the uphole wedge configuration becomes integrated with the uphole portion of the composite rod to produce an uphole integrated intermediate, and inserting the uphole integrated intermediate within an uphole barrel, with effect that the uphole wedge configuration becomes wedged between the composite rod and an uphole wedge configuration counterpart of the uphole barrel; and overmolding a downhole wedge configuration to a downhole portion of the composite rod, with effect that the downhole wedge configuration becomes integrated with the downhole portion of the composite rod to produce a downhole integrated intermediate, and inserting the downhole integrated intermediate within a downhole barrel, with effect that the downhole wedge configuration becomes wedged between the composite rod and a downhole wedge configuration counterpart of the downhole barrel.

In another aspect, there is provided a method of manufacturing a sucker rod segment; wherein: the sucker rod segment includes a composite rod that includes: a continuous fiber configuration; and a matrix material configuration that includes a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer; wherein the method comprises: while an uphole portion of the composite rod is emplaced within a cavity of an uphole mold, emplacing an uphole wedge configuration-forming liquid thermoplastic material within the cavity under joinder-effective conditions such that the uphole wedge configuration-forming liquid thermoplastic material becomes disposed in contact engagement with an uphole portion the composite rod, with effect that the uphole portion of the composite rod is heated to produce an uphole interactable matrix material configuration-derived liquid thermoplastic material at an interface between the uphole wedge configuration-forming liquid thermoplastic material and the uphole portion of the composite rod, with effect that mixing of the uphole wedge configuration-forming liquid thermoplastic material and the uphole interactable matrix material configuration-derived liquid thermoplastic material is effectuated, with effect that an uphole liquid thermoplastic mixture is obtained, such that an uphole intermediate liquid thermoplastic material, including the uphole liquid thermoplastic mixture, is produced and then cooled, with effect that the uphole intermediate liquid thermoplastic material hardens, with effect that the uphole wedge configuration becomes joined to the uphole portion of the composite rod, such that an uphole integrated intermediate is produced, and, after the production of the uphole integrated intermediate, inserting the uphole integrated intermediate within an uphole barrel, with effect that the uphole wedge configuration becomes wedged between the composite rod and an uphole wedge configuration counterpart of the uphole barrel; and while a downhole portion of the composite rod is emplaced within a cavity of a downhole mold, emplacing a downhole wedge configuration-forming liquid thermoplastic material within the cavity under joinder-effective conditions such that the downhole wedge configuration-forming liquid thermoplastic material becomes disposed in contact engagement with a downhole portion of the composite rod, with effect that the downhole portion of the composite rod is heated to produce a downhole interactable matrix material configuration-derived liquid thermoplastic material at an interface between the downhole wedge configuration-forming liquid thermoplastic material and the downhole portion of the composite rod, with effect that mixing of the downhole wedge configuration-forming liquid thermoplastic material and the downhole interactable matrix material configuration-derived liquid thermoplastic material is effectuated, with effect that a downhole liquid thermoplastic mixture is obtained, such that a downhole intermediate liquid thermoplastic material, including the downhole liquid thermoplastic mixture, is produced and then cooled, with effect that the downhole intermediate liquid thermoplastic material hardens, with effect that the downhole wedge configuration becomes joined to the downhole portion of the composite rod, such that a downhole integrated intermediate is produced, and, after the production of the downhole integrated intermediate, inserting the downhole integrated intermediate within a downhole barrel, with effect that the downhole wedge configuration becomes wedged between the composite rod and a downhole wedge configuration counterpart of the downhole barrel.

Other aspects will be apparent from the description and drawings provided herein.

BRIEF DESCRIPTION OF DRAWINGS

In the figures, which illustrate example embodiments,

FIG. 1 is a cross-sectional view of an example embodiment of a sucker rod segment;

FIG. 2 is a cross-sectional view of the sucker rod segment of FIG. 1, in tension;

FIG. 3 is a cross-sectional view of the uphole portion of the composite rod, the uphole barrel, the uphole wedge configuration, and the uphole end cap of the sucker rod segment of FIG. 1, in tension;

FIG. 4 is a cross-sectional view of the downhole portion of the composite rod, the downhole barrel, the downhole wedge configuration, and the downhole end cap of the sucker rod segment of FIG. 1, in tension;

FIG. 5 is an exploded view of the uphole portion of the composite rod, the uphole barrel, the uphole wedge configuration, and the uphole end cap of the sucker rod segment of FIG. 1;

FIG. 6 is an exploded view of the downhole portion of the composite rod, the downhole barrel, the downhole wedge configuration, and the downhole end cap of the sucker rod segment of FIG. 1;

FIG. 7 is a top view of the uphole portion of the composite rod and the uphole wedge configuration disposed in a barrel housing of the uphole barrel of the sucker rod segment of FIG. 1;

FIG. 8 is a bottom view of the downhole portion of the composite rod and the downhole wedge configuration disposed in a barrel housing of the downhole barrel of the sucker rod segment of FIG. 1;

FIG. 9 is a perspective view of the uphole or downhole wedge configuration of the sucker rod segment of FIG. 1;

FIG. 10 is an end view of the uphole or downhole wedge configuration of the sucker rod segment of FIG. 1;

FIG. 11 is a cross-sectional view of the uphole or downhole wedge configuration of the sucker rod segment of FIG. 1;

FIG. 12 is a perspective view of the barrel body of the uphole or downhole barrel of the sucker rod segment of FIG. 1;

FIG. 13 is a side view of the barrel body of the uphole or downhole barrel of the sucker rod segment of FIG. 1, with the hidden lines drawn in broken line;

FIG. 14 is a cross-sectional view of the barrel body of the uphole or downhole barrel of the sucker rod segment of FIG. 1;

FIG. 15 is a cross-sectional view of another example embodiment of a sucker rod segment;

FIG. 16 is a cross-sectional view of the sucker rod segment of FIG. 15, in tension;

FIG. 17 is a cross-sectional view of the uphole portion of the composite rod, the uphole barrel, the uphole wedge configuration, and the uphole end cap of the sucker rod segment of FIG. 15, in tension;

FIG. 18 is a cross-sectional view of the downhole portion of the composite rod, the downhole barrel, the downhole wedge configuration, and the downhole end cap of the sucker rod segment of FIG. 15, in tension;

FIG. 19 is a schematic illustration of an example embodiment of a tape having continuous fibers;

FIG. 20 is a schematic illustration of an overlapped configuration of the tape of FIG. 19;

FIG. 21 is a schematic illustration of a composite rod;

FIG. 22 is a cross-sectional view of the uphole or downhole wedge configuration and a composite rod of the sucker rod segment of FIG. 15, connected via nuts and bolts;

FIG. 23 is a cross-sectional view of the uphole or downhole wedge configuration and a composite rod of the sucker rod segment of FIG. 15, connected via pins;

FIG. 24 is a perspective view of the uphole or downhole wedge configurations of the sucker rod segment of FIG. 15;

FIG. 25 is a side view of the uphole or downhole wedge configurations of FIG. 24;

FIG. 26 is a schematic illustration of a plurality of sucker rod segments connected in series;

FIG. 27 is a perspective view of a composite rod and a plurality of uphole or downhole wedge configurations of the sucker rod segment of FIG. 15;

FIG. 28 is a cross-sectional view of a composite rod compressed by uphole wedge configurations of the sucker rod segment of FIG. 15;

FIG. 29 is a cross-sectional view of a composite rod compressed by downhole wedge configurations of the sucker rod segment of FIG. 15; and

FIG. 30 is a schematic illustration of a sucker rod, employing a sucker rod string, including a plurality of sucker rod segments connected in series, emplaced within a wellbore for producing reservoir fluid from a subterranean formation.

DETAILED DESCRIPTION

Disclosed herein are example embodiments of a sucker rod segment 10 according to the present disclosure. In some embodiments, for example, the sucker rod segment 10 is suitable to be used in the assembly of a sucker rod 1000, with other sucker rod segments 10, for integration and use in a sucker rod pump 1100.

The sucker rod pump 1100 includes a plunger 1102, attached to a sucker rod 1000 which extends downhole via a wellbore 1200 extending into a subterranean formation 1202. The sucker rod 1000 is connected to surface equipment which causes reciprocating movement of the plunger 1102. The reciprocating movement of the plunger 1102 provides the pumping forces required to displace reservoir fluid to a wellhead 1206 located at the surface 1204. In this respect, reservoir fluid is produced to the surface 1204 from the subterranean formation 1202 in response to reciprocating longitudinal movement of the rod 1000 by the pumpjack. The plunger 1102 reciprocates longitudinally within the wellbore 1200. In some embodiments, for example, the surface equipment includes a prime mover (e.g. an internal combustion engine or a motor), a crank arm, and a beam. The prime mover rotates the crank arm, and the rotational movement of the crank arm is converted to reciprocal longitudinal movement through the beam. In some embodiments, for example, the prime mover is a pumpjack. The beam is attached to a polished rod by cables hung from a horsehead at the end of the beam. The polished rod passes through a stuffing box and is attached to the plunger 1102. Accordingly, the surface equipment effects reciprocating longitudinal movement of the plunger 1102, and further defines the upper and lower displacement limits of the plunger 1102. In some embodiments, for example, the pump 1100 includes a cavity 1104 for receiving reservoir fluid from the subterranean formation. In some embodiments, for example, flow communication between the cavity 1104 and the subterranean formation 1202 is established based on opening and closing of a standing valve 1106. While the standing valve 1106 is open, flow communication is established between the pump cavity 1104 and the subterranean formation 1202, and while the standing valve 1106 is closed, flow communication between the pump cavity 1104 and the subterranean formation 1202 is occluded (such as, for example, sealed), such that the reservoir fluid disposed within the pump cavity 1104 is prevented from flowing back towards the subterranean formation 1202. In some embodiments, for example, a travelling valve 1108 is connected to the plunger 1102 for displacement with the plunger 1102. The travelling valve 1108 is configured to co-operate with pump cavity 1104 such that, while the travelling valve 1108 is open, flow communication is established between the pump cavity 1104 and the surface 1204, and while the travelling valve 1108 is closed, flow communication between the pump cavity 1104 and the surface 1204 is occluded (such as, for example, sealed). During the upstroke of the plunger 1102, the travelling valve 1108 is closed and the standing valve 1106 is open. This allows reservoir fluid to enter into the cavity 1104 and the reservoir fluid located above the plunger 1102 is lifted to the surface 1204, via a production string 1208 emplaced within the wellbore 1200, by the plunger 1102. On the downstroke of the plunger 1102, the travelling valve 1108 is open and the standing valve 1106 is closed. This ensures that reservoir fluid remaining above the travelling valve 1108 does not flow downwards through the plunger 1102 back into the pump cavity 1104, so that such reservoir fluid can be lifted towards the surface 1204 on the subsequent upstroke.

As depicted in FIG. 1 to FIG. 8 and FIG. 15 to FIG. 18, in some embodiments, for example, the sucker rod segment 10 comprises a composite rod 120. The composite rod 120 includes an uphole portion 122 and a downhole portion 124. The downhole portion 124 is disposed downhole relative to the uphole portion 122.

In some embodiments, for example, the composite rod 120 has a length of at least 12 inches, such as, for example, at least 15 inches, such as, for example, at least 18 inches. In some embodiments, for example, the composite rod 120 is elongated. In some embodiments, for example, the longitudinal cross-section of the composite rod 120 has a round shape, for example, a circular shape. In some embodiments, for example, the longitudinal cross-section of the composite rod 120 has a polygonal shape, for example, a quadrilateral shape, for example, a square or rectangular shape. In some embodiments, for example, the composite rod 120 has a longitudinal cross-section, and the longitudinal cross-section defines an area of greater than 0.113 square inches, such as, for example, 0.196 square inches, such as, for example, 0.442 square inches. In some embodiments, for example, the composite rod 120 has a longitudinal cross-section, and the longitudinal cross-section defines an area of less than 1.23 square inches. In some embodiments, for example, the composite rod 120 has a longitudinal cross-section, and the longitudinal cross-section defines an area of less than 1.23 square inches, and also has a modulus of elasticity of greater than 25,000 psi. In some embodiments, for example, the composite rod 120 has a longitudinal cross-section, and the longitudinal cross-section defines an area of greater than 0.113 square inches (such as, for example, greater than 0.196 square inches, such as, for example, greater than 0.442 square inches) and less than 1.23 square inches, and also has a modulus of elasticity of greater than 25,000 psi.

In some embodiments, for example, as depicted in FIG. 21, the composite rod 120 includes a fiber material configuration 12. In some embodiments, for example, the fiber material configuration includes (and, in some embodiments, for example, is defined by) chopped fibers. In some embodiments, for example, the fiber material configuration 12 includes (and in some embodiments, for example, is) a continuous fiber configuration defined by a total number of “N” continuous fiber(s) 14. “N” is greater than, or equal to, one (1). In some embodiments, for example, “N” is at least 800. In some embodiments, for example, each one of the “N” continuous fiber(s) 14, independently is one or more of: carbon fiber, glass fiber, aramid fiber, liquid-crystal polymer fiber (for example, Vectran™, manufactured by Kuraray Co., Ltd.), and plastic ultra-high molecular weight polyethylene fiber (for example Dyneema™, manufactured by Avient Corporation). In some embodiments, for example, for each one of the “N” continuous fiber(s) 14, independently, the length, L, of the continuous fiber 14, is at least 12 inches, such as, for example, at least 15 inches, such as, for example, at least 18 inches. In some embodiments, for example, for each one of the “N” continuous fiber(s) 14, the diameter, D, of the continuous fiber 14, independently, is at least 5 μm. In some embodiments, for example, for each one of the “N” continuous fiber(s) 14, the diameter, D, of the continuous fiber 14, independently, is less than 50 μm.

In some embodiments, for example, the total number “N” continuous fiber(s) 14 is a plurality of continuous fibers, and the plurality of continuous fibers are unidirectionally oriented.

In some embodiments, for example, the total number “N” continuous fiber(s) 14 is a plurality of continuous fibers, and at least some of the plurality of continuous fibers are oriented in a non-unidirectional path.

In some embodiments, for example, the total number “N” continuous fiber(s) 14 is a plurality of continuous fibers, and the plurality of continuous fibers are longitudinally aligned.

In some embodiments, for example, the total number “N” continuous fiber(s) 14 is a plurality of continuous fibers, and the plurality of continuous fibers is defined by an interwoven plurality of continuous fibers. In some of these embodiments, for example, the interwoven plurality of continuous fibers defines a braid. In some embodiments, for example, the plurality of continuous fibers is defined by an interwoven fiber configuration, wherein the interwoven fiber configuration is defined by an interwoven plurality of sets of continuous fibers, wherein each one of the sets, independently, includes at least two non-woven continuous fibers. In some of these embodiments, for example, the interwoven fiber configuration is a braided configuration defined by a braided plurality of sets of continuous fibers, wherein each one of the sets, independently, includes at least two non-woven continuous fibers.

While some embodiments of the sucker rod segment 10 have been described in connection with the composite rod 120 including continuous fibers, it will be understood that, in some example embodiments, the sucker rod segment 10 may be formed by a composite rod 120 that does not include continuous fibers, but rather, may be comprised of chopped fibers embedded a matrix material configuration.

The composite rod 10 further includes a matrix material configuration 20. In some embodiments, for example, the matrix material configuration 20 is in the form of a continuous phase of matrix material. In some embodiments, for example, the matrix material configuration 20 is in the form of a dispersed phase that is distributed through the composite rod 10. In some embodiments, for example, the fiber material configuration 12 is embedded within the matrix material configuration 20. In some embodiments, for example, the embedding includes fusing.

In some embodiments, for example, the matrix material configuration 20 includes (and, in some embodiments, for example, is) polymeric material that is defined by at least one polymer. In some embodiments, for example, the polymeric material, of the matrix material configuration 20, is characterized by a total elongation to failure value of greater than 20%, for example, greater than 25%, for example, greater than 30%, for example, greater than 35%. In some embodiments, for example, the polymeric material, of the matrix material configuration 20, is characterized by a softening point of greater than 100 degrees Celsius, such as, for example, greater than 115 degrees Celsius. In some embodiments, for example, the polymeric material, of the matrix material configuration 20, includes (and, in some embodiments, for example, is) thermoplastic polymer material that is defined by at least one thermoplastic polymer. In some embodiments, for example, the thermoplastic polymer material includes at least one thermoplastic polymer, and, in some of these embodiments, for example, the at least one thermoplastic polymer includes at least one of: a polyamide, a polyimide, sulfonated polymers, or any other high temperature thermoplastic polymer. Suitable examples of sulfonated polymers include polyphenylene sulfide (PPS) and polyether ether ketone (PEEK).

Referring to FIG. 19, in some embodiments, for example, each one of the “N” continuous fibers 14, independently, is derived from a tape 80, wherein the tape 80 includes a total number of at least eight hundred (800) continuous fibers 14. In some embodiments, for example, the tape 80 includes a total number of less than 50,000 continuous fibers 14. In some embodiments, for example, the tape 80 has a width “W” of at least ⅛ of an inch. In some embodiments, for example, the tape 80 has a width “W” of less than 2 inches. In some embodiments, for example, the continuous fibers 14 that make up the tape 80 are arranged adjacent to one another along an axis that extends transverse to a longitudinal axis 81 of the tape 80, and the continuous fibers 14 are joined together in their adjacent relationship within the tape 80 by a binder or a binding material 220. In some embodiments, the binder or binding material 220 is a matrix material that is the same or similar to the matrix material that forms the matrix material configuration 20. In some embodiments, for example, the continuous fibers 14 of the tape 80 are disposed in a parallel relationship. In some embodiments, for example, the continuous fibers 14 of the tape 80 are arranged in a non-parallel relationship to one another, such as, for example, a woven pattern or a braided arrangement.

In some embodiments, for example, the continuous fibers 14 are pre-impregnated with the binder material 220 (or matrix material of the matrix material configuration 20).

In some embodiments, for example, each one of the “N” continuous fibers 14, independently, is derived from a tow, wherein the tow is comprised of a bundle of continuous fibers 14. In some embodiments, for example, each one of the “N” continuous fibers 14, independently, is derived from a roving, wherein the roving is comprised of a plurality of unidirectional and unspun fibers that are held together by a binder. In some embodiments, for example, the roving is a single end roving, wherein the fibers are continuous from one end of the roving to the other. In some embodiments, for example, the fibers of a single end roving are glass fibers. In some embodiments, for example, the roving is a multi-end roving, such as those found in natural fibers. In some embodiments, for example, the continuous fibers 14 of the tape 80 are derived from a tow or a roving.

In some embodiments, for example, to effectuate formation of the composite rod 10, in some embodiments, for example, a plurality of tapes 80 are disposed in overlapped relationship, for example, via a jig, such that an overlapped configuration 82 is defined, as depicted in FIG. 20. In the overlapped configuration 82, segments of the tape 80 overlap each other. In some embodiments, for example, while the tape 80 is disposed in the overlapped configuration 82, heat is applied to at least a portion of the overlapped configuration 82. In some embodiments, heat is applied to the entirety of the overlapped configuration 82. In some embodiments, for example, pressure is also applied to at least portion of the overlapped configuration 82. In some embodiments, for example, pressure is applied to the entirety of the overlapped configuration 82. In some embodiments, for example, the heat and/or pressure is applied to the overlapped configuration 82 while the overlapped configuration 82 is disposed in tension. In some embodiments, for example, the application of the heat and/or pressure to the overlapped configuration 82 is with effect that the matrix material of the binder or binding material 220 of the tape 80 becomes softened and rearranges itself, relative to the continuous fibers 14 that form the tape 80, such that overlapping segments of the tape 80 become fused, such that the tape 80 transitions from the overlapped configuration 82 to the composite rod 120 and the matrix material configuration 20 is defined. In some embodiments, for example, heat and pressure is applied by a press. In some embodiments, for example, wherein the matrix material that forms the matrix material configuration 20 is a thermoplastic material, the composite rod 120 can be re-heated and/or reformed after an initial heating and/or forming process that effectuates the embedment of the at least a portion of the continuous fibers 14 within the matrix material configuration 20.

In some embodiments, for example, the effectuate formation of the composite rod 10, the continuous fibers 14 are disposed in a bundle such that the continuous fibers 14 are disposed in alignment, and heat is applied to the bundle of continuous fibers 14. In some embodiments, for example, the application of the heat to the bundle of continuous fibers 14 is with effect that the matrix material or binding material of the continuous fibers 14 becomes softened and rearranges itself such that the continuous fibers 14 become fused, such that the bundle of continuous fibers 14 transitions to the composite rod 120 and the matrix material configuration 20 is defined.

In some embodiments, for example, the longitudinal cross-section of the composite rod 120 has a round shape, for example, a circular shape. In some embodiments, for example, the longitudinal cross-section of the composite rod 120 has a polygonal shape, for example, a quadrilateral shape, for example, a square or rectangular shape.

In some embodiments, for example, it is desirable to improve the strength of the composite rod 120 against torsion (e.g. against rotation of the composite rod 120 about a central longitudinal axis of the composite rod 120). In this respect, in some embodiments, for example, after the composite rod 120 is formed, the composite rod 120 is wrapped with a wrapping. The wrapping is configured to oppose rotation of the composite rod 120 about a central longitudinal axis of the composite rod 120. In some embodiments, for example, the wrapping comprises fibers 14 as described herein. In some embodiments, for example, the wrapping is defined by a string. In some embodiments, for example, the wrapping is defined by a tape.

In some embodiments, for example, the wrapping is wrapped in tension around the composite rod 120, for example, via back tension. In some embodiments, for example, the wrapping is wrapped in tension around the composite rod 120 via at least one (1) pound of back tension, for example, at least two (2) pounds of back tension, for example, at least 2.5 pounds of back tension.

In some embodiments, for example, the wrapping is wrapped around at least a longitudinal portion of the composite rod 120. In some embodiments, for example, the wrapping is wrapped around the entire length of the composite rod 120.

In some embodiments, for example, the wrapping is wrapped around the composite rod 120 in a helical configuration. In some embodiments, for example, the helical wrapping defines a pitch angle. In some embodiments, for example, the pitch angle has a minimum value of at least 40 degrees, for example, at least 45 degrees. In some embodiments, for example, the pitch angle has a maximum value of at most 65 degrees, for example, at most 58 degrees.

In some embodiments, for example, after the wrapping is wrapped around the composite rod 120, the composite rod 120 is passed through a heating die, to melt the matrix material configuration 20 disposed at the outer surface of the composite rod 120, such that, after the melted matrix material configuration is solidified, the composite rod 120 is fused with the wrapping to define a reinforced composite rod.

In some embodiments, for example, the sucker rod segment 10 comprises an uphole rod segment connector 152 and a downhole rod segment connector 154. In this respect, the sucker rod segment 10 is connectable, for example, at a first end, such as at an uphole end, to an adjacent uphole sucker rod segment via the uphole rod segment connector 152. In some embodiments, for example, the sucker rod segment 10 is connectable, for example, at a second end that is opposite the first end, such as at a downhole end, to an adjacent downhole sucker rod segment via the downhole rod segment connector 154. In some embodiments, for example, the connection to an adjacent uphole sucker rod segment, with the uphole rod segment connector 152, is a threaded connection. In the illustrated embodiment, for example, the uphole segment connector 152. In some embodiments, for example, the connection to an adjacent downhole sucker rod segment, with the downhole rod segment 154, is a threaded connection. It is understood that, in those embodiments where an adjacent uphole sucker rod segment is connectable to the uphole rod segment connector 152 an adjacent downhole sucker rod segment is connectable to the downhole rod segment connector 154, in some of these embodiments, for example, the adjacent uphole sucker rod segment is identical to the sucker rod segment 10, and the adjacent downhole sucker rod segment is also identical to the sucker rod segment 10.

In some embodiments, for example, the sucker rod segment 10 further includes an uphole wedge configuration counterpart 142, an uphole wedge configuration 132, a composite rod 120, a downhole wedge configuration 134, and a downhole wedge configuration counterpart 144.

In some embodiments, for example, the uphole wedge configuration 132 is connected to the uphole portion 122 of the composite rod 120, such that the uphole wedge configuration 132 is integral with the composite rod 120.

Referring to FIG. 11 and FIG. 25, in some embodiments, for example, the length L of the uphole wedge configuration 132 has a minimum value of at least 0.5 inches. In some embodiments, for example, the length L of the uphole wedge configuration 132 has a maximum value of at most 12 inches.

In some embodiments, for example, the connection between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120 is effectuated via fusion bonding (or “welding” or “plastic welding”). In some embodiments, for example, the material of construction, of the uphole wedge configuration 132, includes (and, in some embodiments, for example, is) a respective polymeric material that is defined by at least one polymer, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction includes (and, in some embodiments, for example, is) polymeric material. In some embodiments, for example, the polymeric material, that is respective to the uphole wedge configuration 132, is characterized by a total elongation to failure value of greater than 20%, for example, greater than 25%, for example, greater than 30%, for example, greater than 35%, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction is characterized by a total elongation to failure value of greater than 20%, for example, greater than 25%, for example, greater than 30%, for example, greater than 35%. Also, in some embodiments, for example, the polymeric material, that is respective to the uphole wedge configuration 132 is characterized by a softening point of at least 100 degrees Celsius, such as, for example at least 115 degrees Celsius, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction is characterized by a softening point of at least 100 degrees Celsius, such as, for example at least 115 degrees Celsius. In some embodiments, for example, the polymeric material, that is respective to the uphole wedge configuration 132, includes a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer, and the polymeric material, that is respective to the composite rod 120, includes (and, in some embodiments, for example, is) a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction includes (and, in some embodiments, for example, is) a respective thermoplastic polymer material. Suitable thermoplastic polymers include a polyamide, a polyimide, sulfonated polymers, or any other high temperature thermoplastic polymer. Suitable examples of sulfonated polymers include polyphenylene sulfide (PPS) and polyether ether ketone (PEEK). In some embodiments, for example, the thermoplastic polymer material, that is respective to the uphole wedge configuration 132, and the thermoplastic polymer material, that is respective to the matrix material configuration of the composite rod 120, are the same thermoplastic polymer material.

In some embodiments, for example, the uphole wedge configuration 132 is overmolded, such as, for example, by injection molding, over the uphole portion 122 of the composite rod 120, as described in greater detail herein. In some embodiments, for example, as depicted in FIG. 9 to FIG. 11, the overmolded uphole wedge configuration 132 is in the form of a frustoconical shape. Correspondingly, in some embodiments, for example, the uphole wedge configuration counterpart 142 is also defined by a frustoconical shape, as depicted in FIG. 12 to FIG. 14.

In some embodiments, for example, the connection of the uphole wedge configuration 132 to the uphole portion 122 of the composite rod 120 is effectuated via mechanical coupling.

In some embodiments, for example, the uphole wedge configuration 132 includes one or more wedges 132A, as depicted in FIG. 15 to FIG. 18. In some embodiments, for example, the number of wedged-shaped uphole wedge configurations 132 is based on the number of external surfaces of the composite rod 120 that are configured to be disposed in abutting engagement with the uphole wedge configuration 132. As depicted in FIG. 27, in some embodiments, for example, the composite rod 120 has four external surfaces that are each configured to be disposed in abutting engagement with a respective wedge 132A.

In some of these embodiments, for example, as depicted in FIG. 22 to FIG. 25, the material of construction of the wedges 132A includes metal, for example, steel or aluminum. In some embodiments, for example, the material of construction of the wedges 132A is metal, for example, steel or aluminum.

In some of these embodiments, for example, as depicted in FIG. 15 to FIG. 18 and in FIG. 22 to FIG. 25, each one of the one or more wedges 132A, independently, has a wedge shape or a doorstop shape. As depicted, in some embodiments, for example, for each one of the one or more wedges 132A, independently, the outer surface 135 of the wedge 132A includes a planar surface portion. In some embodiments, for example, for each one of the one or more wedges 132A, independently, the outer surface 135 of the wedge 132A defines a planar surface. In some embodiments, for example, for each one of the one or more wedges 132A, independently, the inner surface 136 of the wedge 132A includes a planar surface portion.

In some embodiments, for example, for each one of the one or more wedges 132A, independently, the taper angle α of the wedge 132A is defined between the outer surface 135, for example, a planar surface portion of the outer surface 135, and the inner surface 136, for example, a planar surface portion of the inner surface 136, of the wedge 132A.

In some embodiments, for example, as depicted in FIG. 28, for each one of the one or more wedges 132A, independently, the connection between the wedge 132A and the uphole portion 122 of the composite rod 120 is effectuated by co-operation between: (i) an inner surface 136 of the wedge 132A, and (ii) an outer surface 126 of the uphole portion 122 of the composite rod 120. In some embodiments, for example, for each one of the one or more wedges 132A, independently, while the wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, the outer surface 126 of the uphole portion 122 of the composite rod 120 is disposed in contact engagement, for example, abutting engagement, with the inner surface 136 of wedge 132A. In some embodiments, for example, for each one of the one or more wedges 132A, independently, the engagement between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of the wedge 132A is such that friction is established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of the wedge 132A.

As depicted in FIG. 24, FIG. 25, and FIG. 28, in some embodiments, for example, for each one of the one or more wedges 132A, independently, the profile of the inner surface 136 of the wedge 132A is an irregular, uneven, or rough profile. In some embodiments, for example, for example, the profile of the surface 136 is knurled, include projections such as ribs, include ridges, is corrugated, is serpentine, is wavey, or a combination thereof.

In some embodiments, for example, a non-linear outer surface 127 is defined by the outer surface 126 of the uphole portion 122 of the composite rod 120. In some embodiments, for example, the non-linear outer surface 127 is a curvilinear outer surface 127. In some embodiments, for example, the non-linear outer surface 127 is a serpentine outer surface 127. In some embodiments, for example, the non-linear outer surface 127 is a wavey outer surface 127. In some embodiments, for example, the non-linear outer surface 127 is a corrugated outer surface 127. In some embodiments, for example, the non-linear outer surface 127 has a profile that is an irregular, uneven, or rough profile. In some embodiments, for example, the non-linear outer surface 127 is an irregular, uneven, or rough outer surface 127. In this respect, in some embodiments, for example, the non-linear outer surface 127 is knurled, include projections such as ribs, include ridges, be corrugated, be waved, or a combination thereof. In some embodiments, for example, the non-linear outer surface 127 has a profile that corresponds with the profile of the inner surface 136 of the one or more wedges 132A.

In some embodiments, for example, for each one of the one or more wedges 132A, independently, while the wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, the inner surface 136 of the wedge 132A and the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120 are co-operatively configured to establish an interference for interfering with displacement of the uphole portion 122 of the composite rod 120, relative to the wedge 132A, for example, along an axis that is parallel to the longitudinal axis of the composite rod 120. In some embodiments, for example, for each one of the one or more wedges 132A, independently, the co-operative configuration, of the inner surface 136 of the wedge 132A and the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120, for establishing the interference, is a mating configuration.

In some embodiments, for example, the wedge configuration 132 and the composite rod 120 are co-operatively configured such that, while the wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120: (i) for each one of the one or more wedges 132A, independently, the friction established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of wedge 132A, and (ii) for each one of the one or more wedges 132A, independently, the interference established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the wedge 132A co-operate to oppose, for example, resist, defeating of the contact engagement (e.g. abutting engagement) between the surfaces, with effect that the wedge 132A and the uphole portion 122 of the composite rod 120 become coupled. In some embodiments, for example, the wedge configuration 132 and the composite rod 120 are co-operatively configured such that, while the wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120: (i) for each one of the one or more wedges 132A, independently, the friction established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of wedge 132A, and (ii) for each one of the one or more wedges 132A, independently, the interference established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the wedge 132A co-operate to oppose, for example, resist, displacement of the composite member 120, relative to the wedge 132A, along an axis that is parallel to the longitudinal axis of the composite rod 120 (e.g. co-operate to oppose, for example, resist, slip of the composite member 120, relative to the uphole wedge configuration 132). In some embodiments, for example, the wedge configuration 132 and the composite rod 120 are co-operatively configured such that, while the wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120: (i) for each one of the one or more wedges 134A, independently, the friction established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of wedge 132A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the wedge 132A co-operate such that, while a tensile force is applied to the composite rod 120, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, a tensile force, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the wedge 132A. In some embodiments, for example, the wedge configuration 132 and the composite rod 120 are co-operatively configured such that, while the wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120: (i) for each one of the one or more wedges 132A, independently, the friction established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of wedge 132A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the wedge 132A co-operate such that, while a tensile force is applied to the wedge 132A (such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, a tensile force, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the composite rod 120).

As depicted in FIG. 28, for each one of the one or more wedges 132A, independently, while the wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, and a tension force FT is applied to the composite rod 120, the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120 applies a force F1 to the inner surface 136 of the wedge 132A. For each one of the one or more wedges 132A, independently, in response to the force F1 applied to the inner surface 136 of the wedge 132A by the non-linear outer surface 127 of the uphole portion 122 composite rod 120, the inner surface 136 of the wedge 132A applies a reaction force F2 to the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120.

The reaction force F2 applied to the non-linear outer surface 127, of the uphole portion 122 of the composite rod 120, by the inner surface 136 of the uphole wedge configuration 132 opposes the tension force FT applied to the composite rod 120. In some embodiments, for example, the reaction force F2 applied to the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge configuration 132 includes a component that is in a direction that is opposite the direction of the tension force FT.

In some embodiments, for example, for each one of the one or more wedges 132A, independently, the connection between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120 is effectuated via mechanical fasteners.

In some embodiments, for example, for each one of the one or more wedges 132A, independently, the connection between the wedge 132A and the uphole portion 122 of the composite rod 120 is effectuated by nuts and bolts 2, as depicted in FIG. 22.

In some embodiments, for example, for each one of the one or more wedges 132A, independently, the mechanical connection between the wedge 132A and the uphole portion 122 of the composite rod 120 is effectuated by pins 4, as depicted in FIG. 23. In some embodiments, for example, while the matrix material configuration 20 is deformable, for example, while the matrix material configuration 20 is warmed, the pins 4 are pressed into the matrix material configuration 20 to effectuate the mechanical integration. In some embodiments, for example, while the pins 4 are heated, the pins 4 are pressed into the matrix material configuration 20 for embedding the pins 4 into the matrix material configuration 20, to effectuate the mechanical integration.

In some embodiments, for example, as depicted in FIG. 23, a wrapping 6 is wrapped around the uphole wedge configuration 132 and the composite rod 120 to effectuate the mechanical integration between the wedge configuration and the composite rod 120. In some embodiments, for example, the wrapping comprises wire. In some embodiments, for example, the wrapping comprises a composite fiber. In some embodiments, for example, the wrapping comprises a composite string. In some embodiments, for example, the wrapping comprises one or more continuous fibers 14 as described herein.

In some embodiments, for example, the downhole wedge configuration 134 is connected to the downhole portion 124 of the composite rod 120 such that the downhole wedge configuration 134 is integral with the composite rod 120.

Referring to FIG. 11 and FIG. 25, in some embodiments, for example, the length L of the downhole wedge configuration 134 has a minimum value of at least 0.5 inches. In some embodiments, for example, the length L of the downhole wedge configuration 134 has a maximum value of at most 12 inches.

In some embodiments, for example, the connection between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120 is effectuated via fusion bonding (or “welding” or “plastic welding”). In some embodiments, for example, the material of construction, of the downhole wedge configuration 134, includes (and, in some embodiments, for example, is) a respective polymeric material that is defined by at least one polymer, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction includes (and, in some embodiments, for example, is) polymeric material. In some embodiments, for example, the polymeric material, that is respective to the downhole wedge configuration 134, is characterized by a total elongation to failure value of greater than 20%, for example, greater than 25%, for example, greater than 30%, for example, greater than 35%, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction is characterized by a total elongation to failure value of greater than 20%, for example, greater than 25%, for example, greater than 30%, for example, greater than 35%. Also, in some embodiments, for example, the polymeric material, that is respective to the downhole wedge configuration 134 is characterized by a softening point of at least 100 degrees Celsius, such as, for example at least 115 degrees Celsius, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction is characterized by a softening point of at least 100 degrees Celsius, such as, for example at least 115 degrees Celsius. In some embodiments, for example, the polymeric material, that is respective to the downhole wedge configuration 134, includes a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer, and the polymeric material, that is respective to the composite rod 120, includes (and, in some embodiments, for example, is) a respective thermoplastic polymer material that is defined by at least one thermoplastic polymer, and, in some of these embodiments, for example, the matrix material configuration 20 of the composite rod 120, is the matrix material configuration whose material of construction includes (and, in some embodiments, for example, is) a respective thermoplastic polymer material. Suitable thermoplastic polymers include a polyamide, a polyimide, sulfonated polymers, or any other high temperature thermoplastic polymer. Suitable examples of sulfonated polymers include polyphenylene sulfide (PPS) and polyether ether ketone (PEEK). In some embodiments, for example, the thermoplastic polymer material, that is respective to the downhole wedge configuration 134, and the thermoplastic polymer material, that is respective to the matrix material configuration of the composite rod 120, are the same thermoplastic polymer material.

In some embodiments, for example, the downhole wedge configuration 134 is overmolded, such as, for example, by injection molding, over the downhole portion 124 of the composite rod 120, as described in greater detail herein. In some embodiments, for example, as depicted in FIG. 9 to FIG. 11, the overmolded downhole wedge configuration 134 is in the form of a frustoconical shape. Correspondingly, in some embodiments, for example, the downhole wedge configuration counterpart 144 is also defined by a frustoconical shape, as depicted in FIG. 12 to FIG. 14.

In some embodiments, for example, the downhole wedge configuration 134 includes one or more wedges 134A, as depicted in FIG. 15 to FIG. 18. In some embodiments, for example, the number of wedges 134A is based on the number of external surfaces of the composite rod 120 that are configured to be disposed in abutting engagement with the downhole wedge configuration 134. As depicted in FIG. 27, in some embodiments, for example, the composite rod 120 has four external surfaces that are each configured to be disposed in abutting engagement with a respective wedge 134A.

In some of these embodiments, for example, as depicted in FIG. 22 to FIG. 25, the material of construction of the wedges 134A includes metal, for example, steel or aluminum. In some embodiments, for example, the material of construction of the wedges 134A is metal, for example, steel or aluminum.

In some of these embodiments, for example, as depicted in FIG. 15 to FIG. 18 and in FIG. 22 to FIG. 25, each one of the one or more wedges 134A, independently, has a wedge shape or a doorstop shape. As depicted, in some embodiments, for example, for each one of the one or more wedges 134A, independently, the outer surface 137 of the wedge 134A includes a planar surface portion. In some embodiments, for example, for each one of the one or more wedges 134A, independently, the outer surface 137 of the wedge 134A defines a planar surface. In some embodiments, for example, for each one of the one or more wedges 134A, independently, the inner surface 138 of the wedge 134A includes a planar surface portion.

In some embodiments, for example, for each one of the one or more wedges 134A, independently, the taper angle α of the downhole wedge configuration 134 is defined between the outer surface 137, for example, a planar surface portion of the outer surface 137, and the inner surface 138, for example, a planar surface portion of the inner surface 138, of the wedge 134.

In some embodiments, for example, as depicted in FIG. 29, for each one of the one or more wedges 134A, independently, the mechanical connection between the wedge 134A and the downhole portion 124 of the composite rod 120 is effectuated by co-operation between: (i) an inner surface 138 of the wedge 134A, and (ii) an outer surface 128 of the downhole portion 124 of the composite rod 120. In some embodiments, for example, for each one of the one or more wedges 134A, independently, while the wedge 134A is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120, the outer surface 128 of the downhole portion 124 of the composite rod 120 is disposed in contact engagement, for example, abutting engagement, with the inner surface 138 of the wedge 134. In some embodiments, for example, for each one of the one or more wedges 134A, independently, the engagement between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of the wedge 134A, is such that friction is established between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of the wedge 134A.

As depicted in FIG. 24, FIG. 25, and FIG. 29, in some embodiments, for example, the profile of the inner surface 138 of the downhole wedge configuration 134 is an irregular, uneven, or rough profile. In some embodiments, for example, for example, the profile of the surface 138 is knurled, include projections such as ribs, include ridges, is corrugated, is serpentine, is wavey, or a combination thereof.

In some embodiments, for example, a non-linear outer surface 129 is defined by the outer surface 128 of the downhole portion 124 of the composite rod 120. In some embodiments, for example, the non-linear outer surface 129 is a curvilinear outer surface 129. In some embodiments, for example, the non-linear outer surface 129 is a serpentine outer surface 129. In some embodiments, for example, the non-linear outer surface 129 is a wavey outer surface 129. In some embodiments, for example, the non-linear outer surface 129 is a corrugated outer surface 129. In some embodiments, for example, the non-linear outer surface 129 has a profile that is an irregular, uneven, or rough profile. In some embodiments, for example, the non-linear outer surface 129 is an irregular, uneven, or rough outer surface 129. In this respect, in some embodiments, for example, the non-linear outer surface 129 is knurled, include projections such as ribs, include ridges, be corrugated, be waved, or a combination thereof. In some embodiments, for example, the non-linear outer surface 129 has a profile that corresponds with the profile of the inner surface 138 of the downhole wedge configuration 134.

In some embodiments, for example, while the wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120, for each one of the one or more wedges 134A, independently, the inner surface 138 of the wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120 are co-operatively configured to establish an interference for interfering with displacement of the downhole portion 124 of the composite rod 120, relative to the downhole wedge configuration 134, for example, along an axis that is parallel to the longitudinal axis of the composite rod 120. In some embodiments, for example, for each one of the one or more wedges 134A, independently, the co-operative configuration, of the inner surface 138 of the wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120, for establishing the interference, is a mating configuration.

In some embodiments, for example, the downhole wedge configuration 134 and the composite rod 120 are co-operatively configured such that, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120: (i) for each one of the one or more wedges 134A, independently, the friction established between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of the wedge 134A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 129 of the composite rod 120 and the inner surface 138 of the wedge 134A co-operate to oppose, for example, resist, defeating of the contact engagement (e.g. abutting engagement) between the surfaces, with effect that the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120 become coupled. In some embodiments, for example, the downhole wedge configuration 134 and the composite rod 120 are co-operatively configured such that, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120: (i) for each one of the one or more wedges 134A, independently, the friction established between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of wedge 134A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 129 of the composite rod 120 and the inner surface 138 of the wedge 134A co-operate to oppose, for example, resist, displacement of the composite member 120, relative to the downhole wedge configuration 134, along an axis that is parallel to the longitudinal axis of the composite rod 120 (e.g. co-operate to oppose, for example, resist, slip of the composite member 120, relative to the downhole wedge configuration 134). In some embodiments, for example, the downhole wedge configuration 134 and the composite rod 120 are co-operatively configured such that, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120: (i) for each one of the one or more wedges 134A, independently, the friction established between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of the wedge 134A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 129 of the composite rod 120 and the inner surface 138 of the wedge 134A co-operate such that, while a tensile force is applied to the composite rod 120, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, a tensile force, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the downhole wedge configuration 134. In some embodiments, for example, the downhole wedge configuration 134 and the composite rod 120 are co-operatively configured such that, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120: (i) for each one of the one or more wedges 134A, independently, the friction established between the outer surface 128 of the downhole portion 124 of the composite rod 120 and the inner surface 138 of the wedge 134A, and (ii) for each one of the one or more wedges 134A, independently, the interference established by the co-operative configuration of the non-linear outer surface 129 of the composite rod 120 and the inner surface 138 of the wedge 134A co-operate such that, while a tensile force is applied to the downhole wedge configuration 134, such as, for example, a tensile force having a direction that is parallel to a longitudinal axis of the composite rod 120, a tensile force, such as, for example, a tensile force, having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the composite rod 120.

As depicted in FIG. 29, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120, and a tension force FT is applied to the composite rod 120, for each one of the one or more wedges 134A, independently, the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120 applies a force F1 to the inner surface 138 of the wedge 134A. For each one of the one or more wedges 134A, independently, in response to the force F1 applied to the inner surface 138 of the wedge 134A by the non-linear outer surface 129 of the downhole portion 124 composite rod 120, the inner surface 138 of the wedge 134A applies a reaction force F2 to the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120.

For each one of the one or more wedges 134A, independently, the reaction force F2 applied to the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120 by the inner surface 138 of the wedge 134A opposes the tension force FT applied to the composite rod 120. In some embodiments, for example, for each one of the one or more wedges 134A, independently, the reaction force F2 applied to the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120 by the inner surface 138 of the wedge 134A includes a component that is in a direction that is opposite the direction of the tension force FT.

In some embodiments, for example, the mechanical integration between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120 is effectuated via mechanical fasteners.

In some embodiments, for example, the mechanical connection between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120 is effectuated by pins 4, as depicted in FIG. 23. In some embodiments, for example, while the matrix material configuration 20 is deformable, for example, while the matrix material configuration 20 is warmed, the pins 4 are pressed into the matrix material configuration 20 to effectuate the mechanical integration. In some embodiments, for example, while the pins 4 are heated, the pins 4 are pressed into the matrix material configuration 20 for embedding the pins 4 into the matrix material configuration 20, to effectuate the mechanical integration.

In some embodiments, for example, as depicted in FIG. 23, a wrapping 6 is wrapped around the downhole wedge configuration 134 and the composite rod 120 to effectuate the mechanical integration between the wedge configuration and the composite rod 120. In some embodiments, for example, the wrapping comprises wire. In some embodiments, for example, the wrapping comprises a composite fiber. In some embodiments, for example, the wrapping comprises a composite string. In some embodiments, for example, the wrapping comprises one or more continuous fibers 14 as described herein.

In some embodiments, for example, the wedging-effective rod 160 is wedged within the uphole wedge configuration counterpart 142 via the uphole wedge configuration 132, with effect that an uphole wedged configuration is established.

In some embodiments, for example, while the uphole wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120: (i) friction is established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, and (ii) the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142 are disposed in abutting engagement such that interference is established.

In some embodiments, for example, in response to urging of displacement of the uphole wedge configuration 132, relative to the uphole wedge configuration counterpart 142, in a downhole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, for example, by a tensile force applied to the uphole wedge configuration 132 by the composite rod, (i) the friction is established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, and (ii) the interference established by the abutting of the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, co-operate to prevent such displacement of the uphole wedge configuration 132, relative to the uphole wedge configuration counterpart 142.

In some embodiments, for example, in response to urging of displacement of the uphole wedge configuration counterpart 142, relative to the uphole wedge configuration 132, in an uphole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, for example, by a tensile force applied to the barrel 202 by an adjacent uphole sucker rod segment via the uphole rod segment connector 152, (i) the friction is established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, and (ii) the interference established by the abutting of the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, co-operate to prevent such displacement of the uphole wedge configuration counterpart 142, relative to the uphole wedge configuration 132

In this respect, in some embodiments, for example, the uphole wedge configuration 132 includes an outer surface 135 that is tapered inwardly, relative to the central longitudinal axis 30 of the composite member 120, in the downhole direction. As depicted in FIG. 11, in some embodiments, for example, a taper angle α of the outer surface 135 of the uphole wedge configuration 132 has a minimum value of at least 0.5 degrees. In some embodiments, for example, the taper angle α of the outer surface 135 of the uphole wedge configuration 132 has a maximum value of at most 45 degrees. In some embodiments, for example, a taper angle α of the uphole wedge configuration 132 has a value of 3.4 degrees.

Correspondingly, in some embodiments, for example, the uphole wedge configuration counterpart 142 includes an inner surface 143 that is tapered inwardly, relative to the central longitudinal axis 30 of the composite rod 120, in the downhole direction, and such tapering co-operates with the tapering of the outer surface 135 of the uphole wedge configuration 132 for effectuating wedging of the uphole wedge configuration 132 between the composite rod 120 and the uphole wedge configuration counterpart 142. As depicted in FIG. 14, in some embodiments, for example, a taper angle α of the inner surface 143 of the uphole wedge configuration counterpart 142 has a minimum value of at least 0.5 degrees. In some embodiments, for example, the taper angle α of the inner surface 143 of the uphole wedge configuration counterpart 142 has a maximum value of at most 45 degrees. In some embodiments, for example, a taper angle α of the inner surface 143 of the uphole wedge configuration counterpart 142 has a value of three (3) degrees.

In some embodiments, for example, the taper angle of the outer surface 135 of the uphole wedge configuration 132 corresponds to the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142. That is, in some embodiments, for example, the taper angle of the outer surface 135 of the uphole wedge configuration 132 is the same as the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142. In some embodiments, for example, the taper angle of the outer surface 135 of the uphole wedge configuration 132 is three (3) degrees, and the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142 is three (3) degrees.

In some embodiments, for example, the taper angle of the outer surface 135 of the uphole wedge configuration 132 does not correspond to the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142. That is, in some embodiments, for example, the taper angle of the outer surface of the uphole wedge configuration 132 is not the same as the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142. In some embodiments, for example, the taper angle of the outer surface of the uphole wedge configuration 132 is greater than the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142. In some embodiments, for example, the taper angle of the outer surface of the uphole wedge configuration 132 is 3.4 degrees, and the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142 is three (3) degrees.

Referring to FIG. 3, in some embodiments, for example, the uphole wedge configuration counterpart 142 has a length L that is defined along an axis that is parallel to the longitudinal axis of the composite rod 120. In those embodiments wherein the taper angle of the outer surface of the uphole wedge configuration 132 is greater than the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142, the length L of the uphole wedge configuration counterpart 142 is greater than the length L of the uphole wedge configuration 132. In some of those embodiments, for example, the length L of the uphole wedge configuration counterpart 142 has a minimum value of at least 0.6 inches.

In some embodiments, for example, the wedging of the uphole wedge configuration 132 between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120 is such that an uphole compressed portion of the composite rod 120 is defined, wherein the compressive force applied by the uphole wedge configuration 132 to the composite member 120 is applied to the uphole portion 122 of the composite rod 120. In those embodiments where the taper angle of the outer surface 135 of the uphole wedge configuration 132 is greater than the taper angle of the inner surface 143 of the uphole wedge configuration counterpart 142, the compressive force applied by the uphole wedge configuration 132 to the uphole portion of the uphole wedged portion of the composite rod 120 is greater than the compressive force applied by the uphole wedge configuration 132 to a downhole portion of the uphole wedged portion of the composite rod 120. This is desirable, as the stresses induced within the composite rod 120, for example, the uphole wedged portion of the composite rod 120, is more uniformly distributed along the length of the uphole wedged portion of the composite rod 120.

In some embodiments, for example, the uphole wedge configuration counterpart 142 has a respective compressive strength and the uphole portion 122 of the composite rod 120 has a respective compressive strength. In some embodiments, for example, the compressive strength, that is respective to the uphole wedge configuration counterpart 142, is greater than the compressive strength that is respective to the uphole portion 122 of the composite rod 120. In some of these embodiments, for example, the ratio of the compressive strength, that is respective to the uphole wedge configuration counterpart 142, to the compressive strength, that is respective to the uphole portion 122 of the composite rod 120, is greater than three (3), such as, for example, greater than four (4), such as, for example, greater than five (5).

In some embodiments, for example, as depicted in FIG. 3 and FIG. 17, the uphole wedge configuration counterpart 142 is defined within an uphole barrel 202. In some embodiments, for example, the material of construction of the barrel 202 is metallic material, such as, for example, steel or aluminum. In some embodiments, for example, the uphole barrel 202 includes an uphole barrel housing 212 and an end cap 222. The barrel housing 212 defines an inner surface 212A, which defines the uphole wedge configuration counterpart 142. The end cap 222 defines the uphole rod segment connector 152. The end cap 222 is connected (e.g. by threaded connection) to the barrel housing 212 such that the uphole wedge configuration counterpart 142 is integral with the uphole rod segment connector 152. In some embodiments, for example, the end cap 222 defines a cross-over 232. In some embodiments, for example, the barrel housing 212 further defines a handling cap. An outer surface of the handling cap defines a frustoconical surface, for effectuating coupling with an elevator of a rig, such that the sucker rod segment 10 is couplable to the elevator and becomes displaceable by the elevator, in accordance with American Petroleum Institute Specification 11B.

In some embodiments, for example, an uphole barrel passage-defining surface 207 is defined by the inner surface 203 of the barrel housing 212, and the uphole barrel passage-defining surface 207 defines, within the uphole barrel 202, an uphole barrel passage 206, and the composite rod 120 extends downhole from the uphole barrel passage 206, through an uphole barrel port 252, to the downhole barrel 204. In some embodiments, for example, the uphole wedge configuration 132 is axially spaced apart from the uphole barrel port 252, such that an unsupported uphole composite rod portion 123, of the composite rod 120, is established within the uphole barrel passage 206. In some embodiments, for example, the uphole wedge configuration 132 is axially spaced apart from the uphole barrel port 252 along an axis that is parallel to a longitudinal axis of the uphole barrel passage 206. In some embodiments, for example, the unsupported uphole composite rod portion 123 and the uphole barrel passage-defining surface 207 are spaced apart by a minimum spacing distance of less than 0.060 inches, for example, less than 0.050 inches, for example, less than 0.040 inches, for example, less than 0.035 inches. In some embodiments, for example, the minimum spacing distance is defined along an axis that is normal to the outermost surface of the unsupported uphole composite rod portion 123. In this respect, the unsupported uphole composite rod portion 123 and the uphole barrel passage-defining surface 207 are co-operatively configured such that the spacing distance between the unsupported uphole composite rod portion 123 and the uphole barrel passage-defining surface 207 is minimized for mitigating undesirable bending of the unsupported uphole composite rod portion 123, particularly at the uphole barrel port 252 through which the unsupported uphole composite rod portion 123 exits the barrel 202.

In some embodiments, for example, the end cap 222 defines an uphole wedge configuration retainer 242 that is disposed within the barrel 202. In some embodiments, for example, the end cap 222 and the uphole wedge configuration 132 are co-operatively configured such that the uphole wedge configuration retainer 242 opposes movement, of the uphole wedge configuration 132, that is effective for defeating the uphole wedged configuration. In some embodiments, for example, such movement, of the uphole wedge configuration 132, that is effective for defeating the uphole wedged configuration, is being urged while the composite rod 120 is being axially compressed, along a longitudinal axis that is parallel to the central longitudinal axis of the composite rod 120. In some embodiments, for example, the opposing of movement of the uphole wedge configuration 132 is an opposing of displacement of the uphole wedge configuration 132 relative to the uphole wedge configuration counterpart 142. In some embodiments, for example, the end cap 222 is disposed in abutting engagement with the uphole wedge configuration 132, such that the opposing of the movement, of the uphole wedge configuration 132, that is effective for defeating the uphole wedged configuration, is effectuated by the abutting engagement.

In some embodiments, for example, the wedging-effective rod 160 is wedged within the downhole wedge configuration counterpart 144 via the downhole wedge configuration 134, with effect that a downhole wedged configuration is established.

In some embodiments, for example, while the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120: (i) friction is established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, and (ii) the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144 are disposed in abutting engagement such that interference is established.

In some embodiments, for example, in response to urging of displacement of the downhole wedge configuration 134, relative to the downhole wedge configuration counterpart 144, in an uphole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, for example, by a tensile force applied to the downhole wedge configuration 134 by the composite rod, (i) the friction is established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, and (ii) the interference established by the abutting of the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, co-operate to prevent, such displacement of the downhole wedge configuration 134, relative to the downhole wedge configuration counterpart 144.

In some embodiments, for example, in response to urging of displacement of the downhole wedge configuration counterpart 144, relative to the downhole wedge configuration 134, in a downhole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, for example, by a tensile force applied to the barrel 204 by an adjacent downhole sucker rod segment via the downhole rod segment connector 154, (i) the friction is established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, and (ii) the interference established by the abutting of the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, co-operate to prevent such displacement of the downhole wedge configuration counterpart 144, relative to the downhole wedge configuration 134.

In this respect, in some embodiments, for example, the downhole wedge configuration 134 includes an outer surface 137 that is tapered inwardly relative to the central longitudinal axis 30 of the composite member 120 in the uphole direction. As depicted in FIG. 11, in some embodiments, for example, a taper angle α of the outer surface 137 of the downhole wedge configuration 134 has a minimum value of at least 0.5 degrees. In some embodiments, for example, the taper angle α of the outer surface 137 of the downhole wedge configuration 134 has a maximum value of at most 45 degrees. In some embodiments, for example, a taper angle α of the outer surface 137 of the downhole wedge configuration 134 has a value of 3.4 degrees.

Correspondingly, in some embodiments, for example, the downhole wedge configuration counterpart 144 includes an inner surface 145 that is tapered inwardly relative to the central longitudinal axis 30 of the composite rod 120 in the uphole direction, and such tapering co-operates with the tapering of the outer surface 137 of the downhole wedge configuration 134 for effectuating wedging of the downhole wedge configuration 134 between the composite rod 120 and the downhole wedge configuration counterpart 144. As depicted in FIG. 14, in some embodiments, for example, a taper angle α of the inner surface 145 of the downhole wedge configuration counterpart 144 has a minimum value of at least 0.5 degrees. In some embodiments, for example, the taper angle α of the inner surface 145 of the downhole wedge configuration counterpart 144 has a maximum value of at most 45 degrees. In some embodiments, for example, a taper angle α of the inner surface 145 of the downhole wedge configuration counterpart 144 has a value of three (3) degrees.

In some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 corresponds to the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144. That is, in some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 is the same as the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144. In some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 is three (3) degrees, and the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144 is three (3) degrees.

In some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 does not correspond to the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144. That is, in some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 is not the same as the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144. In some embodiments, for example, the taper angle of the downhole wedge configuration 134 is greater than the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144. In some embodiments, for example, the taper angle of the outer surface 137 of the downhole wedge configuration 134 is 3.4 degrees, and the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144 is three (3) degrees.

Referring to FIG. 4, in some embodiments, for example, the downhole wedge configuration counterpart 144 has a length L that is defined along an axis that is parallel to the longitudinal axis of the composite rod 120. In those embodiments wherein the taper angle of the outer surface of the downhole wedge configuration 134 is greater than the taper angle of the inner surface 145 of the downhole wedge configuration counterpart 144, the length L of the downhole wedge configuration counterpart 144 is greater than the length L of the downhole wedge configuration 134. In some of those embodiments, for example, the length L of the downhole wedge configuration counterpart 144 has a minimum value of at least 0.6 inches.

In some embodiments, for example, the wedging of the downhole wedge configuration 134 between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120 is such that a downhole compressed portion of the composite rod 120 is defined, wherein the compressive force applied by the downhole wedge configuration 134 to the composite member 120 is applied to the downhole wedged portion of the composite rod 120. In those embodiments where the taper angle of the outer surface 137 of the downhole wedge configuration 134 is greater than the taper angle of the downhole wedge configuration 134 of the downhole wedge configuration counterpart 144, the compressive force applied by the downhole wedge configuration 134 to a downhole portion of the downhole wedged portion of the composite rod 120 is greater than the compressive force applied by the downhole wedge configuration 134 to an uphole portion of the downhole wedged portion of the composite rod 120. This is desirable, as the stresses induced within the composite rod 120, for example, the downhole wedged portion of the composite rod 120, is more uniformly distributed along the length of the downhole wedged portion of the composite rod 120.

In some embodiments, for example, the downhole wedge configuration counterpart 144 has a respective compressive strength and the downhole portion 124 of the composite rod 120 has a respective compressive strength. In some embodiments, for example, the compressive strength, that is respective to the downhole wedge configuration counterpart 144, is greater than the compressive strength that is respective to the downhole portion 124 of the composite rod 120. In some of these embodiments, for example, the ratio of the compressive strength, that is respective to the downhole wedge configuration counterpart 144, to the compressive strength, that is respective to the downhole portion 124 of the composite rod 120, is greater than three (3), such as, for example, greater than four (4), such as, for example, greater than five (5).

In some embodiments, for example, as depicted in FIG. 4 and FIG. 18, the downhole wedge configuration counterpart 144 is defined within a downhole barrel 204. In some embodiments, for example, the material of construction of the barrel 204 is metallic material, such as, for example, steel or aluminum. In some embodiments, for example, the downhole barrel 204 includes a downhole barrel housing 214 and an end cap 224. The barrel housing 214 defines an inner surface 214A, which defines the downhole wedge configuration counterpart 144. The end cap 224 defines the downhole rod segment connector 154. The end cap 224 is connected (e.g. by threaded connection) to the barrel housing 214 such that the downhole wedge configuration counterpart 144 is integrated with (and, thereby, integrally connected to) the downhole rod segment connector 154. In some embodiments, for example, the end cap 224 defines a cross-over 234. In some embodiments, for example, the barrel housing 214 further defines a handling cap. An outer surface of the handling cap defines a frustoconical surface, for effectuating coupling with an elevator of a rig, such that the sucker rod segment 10 is couplable to the elevator and becomes displaceable by the elevator, in accordance with American Petroleum Institute Specification 11B.

In some embodiments, for example, a downhole barrel passage-defining surface 209 is defined by the inner surface 205 of the barrel housing 214, and the downhole barrel passage-defining surface 209 defines, within the downhole barrel 204, a downhole barrel passage 208, and the composite rod 120 extends downhole from the downhole barrel passage 208, through a downhole barrel port 254, to the uphole barrel 202. In some embodiments, for example, the downhole wedge configuration 134 is axially spaced apart from the downhole barrel port 254, such that an unsupported downhole composite rod portion 125, of the composite rod 120, is established within the downhole barrel passage 208. In some embodiments, for example, the downhole wedge configuration 134 is axially spaced apart from the downhole barrel port 254 along an axis that is parallel to a longitudinal axis of the downhole barrel passage 208. In some embodiments, for example, the unsupported downhole composite rod portion 125 and the downhole barrel passage-defining surface 209 are spaced apart by a minimum spacing distance of less than 0.060 inches, for example, less than 0.050 inches, for example, less than 0.040 inches, for example, less than 0.035 inches. In some embodiments, for example, the minimum spacing distance is defined along an axis that is normal to the outermost surface of the unsupported downhole composite rod portion 125. In this respect, the unsupported downhole composite rod portion 125 and the downhole barrel passage-defining surface 209 are co-operatively configured such that the spacing distance between the unsupported downhole composite rod portion 125 and the downhole barrel passage-defining surface 209 is minimized for mitigating undesirable bending of the unsupported downhole composite rod portion 125, particularly at the downhole barrel port 254 through which the unsupported downhole composite rod portion 125 exits the barrel 204.

In some embodiments, for example, the end cap 224 defines a downhole wedge configuration retainer 244 that is disposed within the downhole barrel 204. In some embodiments, for example, the end cap 224 and the downhole wedge configuration 134 are co-operatively configured such that the downhole wedge configuration retainer 244 opposes movement, of the downhole wedge configuration 134, that is effective for defeating the downhole wedged configuration. In some embodiments, for example, such movement, of the downhole wedge configuration 134, that is effective for defeating the downhole wedged configuration, is being urged while the composite rod 120 is being axially compressed, along a longitudinal axis that is parallel to the central longitudinal axis of the composite rod 120. In some embodiments, for example, the opposing of movement of the downhole wedge configuration 134 is an opposing of displacement of the downhole wedge configuration 134 relative to the downhole wedge configuration counterpart 144. In some embodiments, for example, the end cap 224 is disposed in abutting engagement with the downhole wedge configuration 134, such that the opposing of the movement, of the downhole wedge configuration 134, that is effective for defeating the downhole wedged configuration, is effectuated by the abutting engagement.

In some embodiments, for example, the connection of the uphole wedge configuration 132 to an uphole portion 122 of the composite rod 120 and the connection of the downhole wedge configuration 134 to an uphole portion 124 of the composite rod 120 co-operate to establish a wedging-effective rod 160. The wedging-effective rod 160 is wedged within the uphole wedge configuration counterpart 142 via the uphole wedge configuration 132, and is also wedged within the downhole wedge configuration counterpart 144 via the downhole wedge configuration 134, such that the wedged configuration 170 is established. Application of a tensile force (such as, for example, by an adjacent downhole rod segment which is connected to the connector 154), having a downhole direction, is receivable by the downhole rod segment connector 154, and application of a tensile force (such as, for example, by an adjacent uphole rod segment, which is connected to the connector 152), having an uphole direction, is receivable by the uphole rod segment connector 152. In the wedged configuration 170, the uphole rod segment connector 152, the uphole wedge configuration counterpart 142, the uphole wedge configuration 132, the composite rod 120, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while a tensile force, having a downhole direction, is being applied (such as, for example, by an adjacent downhole rod segment, which is connected to the connector 154) to the downhole rod segment connector 154 (such as, for example, along an axis that is parallel to the central longitudinal axis of the composite rod 120), the applied tensile force is transmitted to the downhole wedge configuration counterpart 144 such that wedging of the wedging-effective rod 160, within the downhole wedge configuration counterpart 144, is effectuated via the downhole wedge configuration 134, with effect that a compressive force is applied to the downhole portion 124 of the composite rod 120 and a tensile force, having a downhole direction, is applied to the composite rod 120, and the tensile force, having a downhole direction, and being applied to the composite rod 120, is transmitted to the uphole wedge configuration 132 such that wedging of the wedging effective rod 160, within the uphole wedge configuration counterpart 142 is effectuated via the uphole wedge configuration 132, with effect that a compressive force is applied to the uphole portion 122 of the composite rod 120 and a tensile force, having a downhole direction, is applied to the uphole wedge configuration counterpart 142 and transmitted to the uphole rod segment connector 152, and while a tensile force, having an uphole direction, is being applied (such as, for example, by an adjacent uphole rod segment that is connected to the connector 152) to the uphole rod segment connector 152 (such as, for example, along an axis that is parallel to the central longitudinal axis of the composite rod 120), the applied tensile force is transmitted to the uphole wedge configuration counterpart 142 such that wedging of the wedging-effective rod 160, within the uphole wedge configuration counterpart 142, is effectuated via the uphole wedge configuration 132, with effect that a compressive force is applied to the uphole portion 122 of the composite rod 120 and a tensile force, having an uphole direction, is applied to the composite rod 120, and the tensile force, having an uphole direction, and being applied to the composite rod 120, is transmitted to the downhole wedge configuration 134 such that wedging of the wedging effective rod 160, within the downhole wedge configuration counterpart 144, is effectuated via the downhole wedge configuration 134, with effect that a compressive force is applied to the downhole portion 124 of the composite rod 120 and a tensile force, having an uphole direction, is applied to the downhole wedge configuration counterpart 144 and transmitted to the downhole rod segment connector 154.

In some embodiments, for example, the uphole rod segment connector 152, the uphole wedge configuration counterpart 142, the wedging-effective rod 160, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that while a tensile force, having a downhole direction, is being applied (such as, for example, by an adjacent downhole rod segment that is connected to the connector 154) to the downhole rod segment connector 154 (in some embodiments, for example, the tensile force has a direction that is parallel to a central longitudinal axis of the composite rod 120), and a tensile force, having an uphole direction, is being applied (such as, for example, by an adjacent uphole rod segment that is connected to the connector 152) to the uphole rod segment connector 152 (in some embodiments, for example, the tensile force has a direction that is parallel to a central longitudinal axis of the composite rod 120): wedging of the wedging-effective rod 160, within the uphole wedge configuration counterpart 142, is effectuated via the uphole wedge configuration 132, wedging of the wedging-effective rod 160, within the downhole wedge configuration counterpart 144, is effectuated, via the downhole wedge configuration 134, a compressive force is applied to the uphole portion 122 of the composite rod 120 in response to the wedging of the wedging-effective rod 160 within the uphole wedge configuration counterpart 142, a compressive force is applied to the downhole portion 124 of the composite rod 120 in response to the wedging of the wedging-effective rod 160 within the downhole wedge configuration counterpart 144, a tensile force, having a downhole direction, is applied to the composite rod 120 (in some embodiments, for example, the tensile force has a direction that is parallel to a central longitudinal axis of the composite rod 120), and a tensile force, having an uphole direction, is applied to the composite rod 120 (in some embodiments, for example, the tensile force has a direction that is parallel to a central longitudinal axis of the composite rod 120). In some of these embodiments, for example, the wedging, of the wedging-effective rod 160, within the uphole wedge configuration counterpart 142, effectuates clamping of the uphole portion 122 of the composite rod 120, and the wedging of the wedging-effective rod 160, within the downhole wedge configuration counterpart 144, effectuates clamping of the downhole portion 122 of the composite rod 120.

In some embodiments, for example, the ratio of the compressive force, that is applied to the composite rod 120 while the tensile force is being applied to the uphole segment connector 152 (e.g. by the adjacent uphole rod segment), to the tensile force, that is being applied to the uphole segment connector 152 (e.g. by the adjacent uphole rod segment), is greater than 2:1, for example, greater than 5:1, for example, greater than 10:1. In some of these embodiments, for example, the ratio of the compressive force, that is applied to the composite rod 120 while the tensile force is being applied to the uphole segment connector 152 (e.g. by the adjacent uphole rod segment), to the tensile force, that is being applied to the uphole segment connector 152 (e.g. by the adjacent uphole rod segment, is less than 30:1, for example, less than 20:1.

In some embodiments, for example, the ratio of the compressive force, that is applied to the composite rod 120 while the tensile force is being applied to the downhole segment connector 154 (e.g. by the adjacent downhole rod segment), to the tensile force, that is being applied to the downhole segment connector 154 (e.g. by the adjacent downhole rod segment), is greater than 2:1, for example, greater than 5:1, for example, greater than 10:1. In some of these embodiments, for example, the ratio of the compressive force, that is applied to the composite rod 120 while the tensile force is being applied to the downhole segment connector 154 (e.g. by the adjacent downhole rod segment), to the tensile force, that is being applied to the downhole segment connector (e.g. by the adjacent downhole rod segment), is less than 30:1, for example, less than 20:1

As depicted in FIG. 26, as illustrated schematically, in some embodiments, for example, the sucker rod segment 10 is configured for connection with a preceding sucker rod segment 10(n−1) within a series of sucker rod segments 10(n), wherein n is two (2) or greater. In some embodiments, for example, the connection between the sucker rod segment 10 with a preceding sucker rod segment 10(n−1) is effectuated via interconnection between the uphole rod segment connector 152 of the sucker rod segment 10, and a downhole rod segment connector 154 of the preceding sucker rod segment 10(n−1). In some embodiments, for example, the interconnection between the sucker rod segment 10 with the preceding sucker rod segment 10(n−1) is effectuated by an intermediate connector 75 having a first end 751 that is configured for connection with the uphole rod segment connector 152 of the sucker rod segment 10, and a second, opposite end 752 that is configured for connection with the downhole rod segment connector 154 of the preceding sucker rod segment 10(n−1). Accordingly, in some embodiments, for example, each of the uphole and downhole rod segment connectors 152, 154, independently, is configured for coupling with respective one of the uphole and downhole sucker rod segments connectors 152, 154 that are defined by the next sucker rod segment 10, and is also configured for coupling with a respective one of the ends 751, 752 defined by the intermediate connector 75. Accordingly, connection between the sucker rod segment 10 and the sucker rod segment 10(n−1), for example, via the intermediate connector 75, is with effect that a pair of connected sucker rod segments is established. In some embodiments, for example, the connection of the sucker rod segment 10 with a preceding sucker rod segment 10(n−1) is such that the sucker rod segment 10 is hung from the downhole rod segment connector 154 of the preceding sucker rod segment 10(n−1), within the series of sucker rod segments 10(n). In some embodiments, for example, the hanging of the sucker rod segment 10 from the preceding sucker rod segment 10(n−1) effectuates the co-operative application of the tensile forces F_Tto the composite rod 120 of the structural member 10.

As depicted in FIG. 26, in some embodiments for example, while a sucker rod segment 10(n) is coupled to a preceding sucker rod segment 10(n−1), for example, via connection between the uphole rod segment connector 152 of the sucker rod segment 10(n) and the downhole rod segment connector 154 of the preceding sucker rod segment 10(n−1), or via the intermediate connector 75, the sucker rod segment 10 is configured for connection with a succeeding sucker rod segment 10(n+1) within the series of sucker rod segments 10(n). In some embodiments, for example, the connection with the succeeding sucker rod segment 10(n+1) is effectuated via interconnection between the downhole rod segment connector 154 of the sucker rod segment 10(n) with the uphole rod segment connector 152 the succeeding sucker rod segment 10(n+1). In some embodiments, for example, the connection between the sucker rod segment 10(n) and the succeeding sucker rod segment 10(n+1) is such that the succeeding sucker rod segment 10(n+1) is hung from the downhole rod segment connector 154 of the sucker rod segment 10(n). In some embodiments, for example, the interconnection between the sucker rod segment 10(n) and the sucker rod segment 10(n+1) is effectuated by the intermediate connector 75 having the first end 751 that is coupled with the uphole rod segment connector 152 of the sucker rod segment 10(n+1), and the second, opposite end 752 that is configured for connection with the downhole rod segment connector 154 of the sucker rod segment 10(n). In some embodiments, for example, connection of the sucker rod segment 10 with a preceding sucker rod segment 10(n−1), and with a succeeding sucker rod segment 10(n+1), within the series of sucker rod segments 10(n) that are arranged in a hanging configuration effectuates the co-operative application of the tensile force F_Tto each one of the sucker rod segments 10 within the series of sucker rod segments 10(n).

In some embodiments, for example, the sucker rod segment 10 is suited for arrangement in series with a plurality of sucker rod segments 10 for the assembly of a sucker rod 1000. A portion of a sucker rod 1000 is illustrated schematically, for example, in FIG. 26. In such example embodiments, the sucker rod segment 10 is one of a plurality of sucker rod segments 10 that are configured for connection in series to form a sucker rod 1000 for use in a downhole wellbore application. In this respect, in some embodiments, for example, the sucker rod segment 10 forms part of a kit for assembling a sucker rod 1000. In such example embodiments, the kit includes a plurality of individual sucker rod segments 10 that are configured for connection in series, wherein the plurality of sucker rod segments 10 includes at least one sucker rod segment 10, as described herein, wherein the connection between the plurality of sucker rod segments 10 in their vertical, hanging arrangement, is effectuated by the uphole and downhole rod segment connectors 152 and 154 and the intermediate connectors 75 as described above. Accordingly, in some embodiments, for example, the kit for assembling the sucker rod 1000 includes at least one uphole barrel 202, uphole end cap 232, downhole barrel 204, downhole end cap 234, and composite rod 120 of the sucker rod segment 10. In some embodiments, for example, the kit for assembling the sucker rod 1000 further includes an uphole wedge configuration 132 and a downhole wedge configuration 134. In some embodiments, for example, each one of the sucker rod segments 10, independently, has a length of at least two (2) feet. In some embodiments, for example, each of the sucker rod segments 10 includes the composite rod 120 as described herein.

As described above, in some embodiments, for example, the total number “N” continuous fiber(s) 14 is a plurality of continuous fibers 14. In some embodiments, for example, at least some of the plurality of continuous fibers 14 are oriented in a non-unidirectional path. Referring to FIG. 28 and FIG. 29, in some of these embodiments, for example, the plurality of continuous fibers 14 are oriented in a non-unidirectional path. As depicted, in some embodiments, for example, the non-unidirectional path is a wave-like path. In some embodiments, for example, the non-unidirectional path is a spiral. In some embodiments, for example, the non-unidirectional path is a braid.

In those embodiments wherein the material of construction of the uphole wedge configuration 132 is metallic material, for example, while a compressive force is applied to the uphole portion 122 of the composite rod 120, the matrix material configuration 20 applies a force to the continuous fibers 14, such that the orientation of the continuous fibers 14 becomes disposed in the non-unidirectional path. As depicted in FIG. 28, in some embodiments, for example, the uphole portion 122 of the composite rod 120, to which the compressive force from the uphole wedge configuration 132 is applied, includes the continuous fibers 14 oriented in a non-unidirectional path. In such embodiments, for example, as depicted, the continuous fibers 14 oriented in the non-unidirectional path and the uphole wedge configuration 132 are disposed in opposing relationship. In some embodiments, for example, wherein the uphole wedge configuration 132 includes opposing uphole wedges 132A, the continuous fibers 14 oriented in the non-unidirectional path are disposed between the opposing uphole wedges 132A.

In some embodiments, for example, while the friction and the interference are established between the uphole wedge configuration 132 and the composite rod 120, such that the uphole wedge configuration 132 and composite rod 120 are mechanically integrated, in response to application of a tensile force F_Tto the composite rod 120, interlaminar shear stress T is generated within the matrix material configuration 20 between continuous fibers 14 oriented in the non-unidirectional path. In some of those embodiments, for example, the generated interlaminar shear stress T opposes, for example, resists, the defeating of the coupling between the uphole wedge configuration 132 and the composite rod 120.

In those embodiments wherein the material of construction of the downhole wedge configuration 134 is metallic material, for example, while a compressive force is applied to the downhole portion 124 of the composite rod 120, the matrix material configuration 20 applies a force to the continuous fibers 14, such that the orientation of the continuous fibers 14 becomes disposed in the non-unidirectional path. As depicted in FIG. 29, in some embodiments, for example, the downhole portion 124 of the composite rod 120, to which the compressive force from the downhole wedge configuration 134 is applied, includes the continuous fibers 14 oriented in a non-unidirectional path. In such embodiments, for example, as depicted, the continuous fibers 14 oriented in the non-unidirectional path and the downhole wedge configuration 134 are disposed in opposing relationship. In some embodiments, for example, wherein the downhole wedge configuration 134 includes opposing downhole wedges 134A, the continuous fibers 14 oriented in the non-unidirectional path are disposed between the opposing downhole wedges 134A.

In some embodiments, for example, while the friction and the interference are established between the downhole wedge configuration 134 and the composite rod 120, such that the downhole wedge configuration 134 and composite rod 120 are mechanically integrated, in response to application of a tensile force F_Tto the composite rod 120, interlaminar shear stress T is generated within the matrix material configuration 20 between continuous fibers 14 oriented in the non-unidirectional path. In some of those embodiments, for example, the generated interlaminar shear stress T opposes, for example, resists, the defeating of the coupling between the downhole wedge configuration 134 and the composite rod 120.

To assemble the sucker rod segment 10, the composite rod 120 is first formed and cut to the desired length.

In those embodiments wherein: (i) material of construction of the uphole wedge configuration 132 is a thermoplastic polymer material, (ii) the material of construction of the downhole wedge configuration 134 is a thermoplastic polymer material, and (iii) the matrix material configuration 20 of the composite rod 120 is a thermoplastic polymer material, as depicted in FIG. 1 to FIG. 3, while the composite rod 120 is formed and cut to the desired length, the composite rod 120 is displaced through the barrel port 252 and through the barrel passage 206, such that the uphole portion 122 of the composite rod 120 is emplaceable in a mould, to effectuate moulding, for example, injection moulding, of the uphole wedge configuration 132. At this point, the uphole portion 122 of the composite rod 120 is emplaced in the mould, and the uphole wedge configuration 132 is moulded onto the uphole portion 122 of the composite rod 120.

In some embodiments, for example, a method of manufacturing the sucker rod segment 10 comprises overmoulding the uphole wedge configuration 132 to an uphole portion 122 of the composite rod 120, with effect that the uphole wedge configuration 132 becomes integrated with the uphole portion 122 of the composite rod 120 to produce an uphole integrated intermediate.

In some embodiments, for example, a method of manufacturing the sucker rod segment comprises: while the uphole portion 122 of the composite rod 120 is emplaced within a cavity of an uphole mold, emplacing an uphole wedge configuration-forming liquid thermoplastic material within the cavity under joinder-effective conditions such that the uphole wedge configuration-forming liquid thermoplastic material becomes emplaced in contact engagement with the uphole portion 122 the composite rod 120, with effect that the uphole portion 122 of the composite rod 120 is heated to produce an uphole interactable matrix material configuration-derived liquid thermoplastic material at an interface between the uphole wedge configuration-forming liquid thermoplastic material and the uphole portion 122 of the composite rod 120, with effect that mixing of the uphole wedge configuration-forming liquid thermoplastic material and the uphole interactable matrix material configuration-derived liquid thermoplastic material is effectuated. Such mixing is with effect that an uphole liquid thermoplastic mixture is obtained, such that an uphole intermediate liquid thermoplastic material, including the uphole liquid thermoplastic mixture, is produced and then cooled, with effect that the uphole intermediate liquid thermoplastic material hardens, with effect that the uphole wedge configuration becomes joined to the uphole portion of the composite rod, such that an uphole integrated intermediate is produced. The production of the uphole integrated intermediate is with effect that the uphole wedge configuration 132 is integrated with the uphole portion 122 of the composite rod 120, such that the uphole wedge configuration 132 and the composite rod 120 are emplaced in force transmission communication. In some embodiments, for example, the joinder of the uphole wedge configuration 132 to the uphole portion 122 of the composite rod 120 is via fusion bonding.

After the uphole integrated intermediate is produced, the uphole integrated intermediate is inserted within the uphole barrel 202, with effect that the uphole wedge configuration 132 becomes wedged between the composite rod 120, for example, the uphole portion 122 of the composite rod 120, and the uphole wedge configuration counterpart 134 of the uphole barrel 202.

In some embodiments, for example, after the uphole integrated intermediate is produced, and prior to insertion of the uphole integrated intermediate within the uphole barrel 202 a downhole portion of the uphole wedge configuration 132 is cut, and an uphole portion of the uphole wedge configuration 132 is cut, such that the frustoconical shape of the uphole wedge configuration 132 is defined. In some embodiments, for example, the downhole portion of the uphole wedge configuration 132 is cut such that there is an absence of emplacement of the uphole wedge configuration 132 in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206, which, in some embodiments, for example, is defined by the uphole barrel cap 222, while the uphole wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120. It is desirable to have an absence of emplaced of the uphole wedge configuration 132 in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206 to avoid induction of a stress concentration in the uphole portion 122 of the composite rod 120. In some embodiments, for example, the uphole portion of the uphole wedge configuration 132 is cut to define a contact surface configured to be emplaced in contact engagement, for example, abutting engagement, with the uphole wedge configuration retainer 242.

The insertion of the uphole integrated intermediate within the uphole barrel 202 is with effect that the outer surface 135 of the uphole wedge configuration 132 is emplaced in contact engagement with the inner surface 143 of the uphole wedge configuration counterpart 142. While the outer surface 135 of the uphole wedge configuration 132 is emplaced in contact engagement with the inner surface 143 of the uphole wedge configuration counterpart 142, a wedging force is applied to the uphole wedge configuration 132, for example, to an uphole end surface of the uphole wedge configuration 132, to wedge or set the uphole wedge configuration 132 between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120. In some embodiments, for example, the wedging force is applied by a hydraulic press. In some embodiments, for example, the wedging force has a minimum value of at least 5,000 pounds, for example, at least 10,000 pounds, for example, at least 20,000 pounds. In some embodiments, for example, the wedging of the uphole wedge configuration 132 between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120 is with effect that: (i) friction is established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, (ii) the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in abutting engagement such that the interference is established for opposing, for example, preventing, displacement of the uphole wedge configuration 132, relative to the uphole wedge configuration counterpart 142, in a downhole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and also for opposing, for example, preventing, displacement of the uphole wedge configuration counterpart 142, relative to the uphole wedge configuration 132, in an uphole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and (iii) the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 are emplaced in force transmission communication.

In some embodiments, for example, in response to the wedging of the uphole wedge configuration 132 between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, a compressive force is applied by the uphole wedge configuration 132 to the uphole portion 122 of the composite rod 120, such that the uphole portion 122 of the composite rod 120 is compressed by the uphole wedge configuration 132. In response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge configuration 132, the outer surface 126 of the uphole portion 122 of the composite rod 120 is compressed by the inner surface 136 of the uphole wedge configuration 132. In some embodiments, for example, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge configuration 132, a compressive stress is induced within the composite rod 120, for example, within the uphole portion 122 of the composite rod 120. In some embodiments, for example, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge configuration 132, the uphole portion 122 of the composite rod 120 is clamped by the uphole wedge configuration 132.

After the uphole wedge configuration 132 is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, the end cap 232 is connected to the barrel 202, for example, via a threaded connection. The connection of the end cap 232 and the barrel 202 is with effect that the end cap 232 and the barrel 202, and therefore, the uphole wedge configuration counterpart 142 and the uphole rod segment connector 152 are integrated, and emplaced in force transmission communication. In some embodiments, for example, in response to the connection of the end cap 232 and the barrel 202, the end cap 232 and the uphole wedge configuration 132 are co-operatively configured such that the uphole wedge configuration retainer 242 opposes movement, of the uphole wedge configuration 132, that is effective for defeating the uphole wedged configuration. In some embodiments, the connection of the end cap 232 and the barrel 202 is with effect that the uphole wedge configuration retainer 242 becomes emplaced in abutting engagement with the uphole wedge configuration 132 for opposing movement, of the uphole wedge configuration 132, that is effective for defeating the uphole wedged configuration.

At this point, the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142, such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, for example, the tensile force having a direction that is parallel to the longitudinal axis of the composite rod 120, a tensile force, for example, having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the composite rod 120.

The integration of the downhole wedge configuration 134 to the downhole portion 124 of the composite rod 120, and the configuration of the composite rod 120, the downhole wedge configuration 134, the downhole barrel 204, and the end cap 234, such that the downhole wedge configuration 134 is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120 and that the end cap 234 is connected to the barrel 204 with effect that the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, is similar to that which has been described above for the uphole wedge configuration 132, the uphole wedge configuration counterpart 134, the uphole barrel 202, and the end cap 232.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the downhole rod segment connector 154 by the adjacent downhole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120, the downhole wedge configuration 134 is urged to displace, relative to the downhole wedge configuration counterpart 144, in an uphole direction. In some embodiments, for example, in response to such displacement of the downhole wedge configuration 134, relative to the downhole wedge configuration counterpart 144, there is an absence of emplacement of the downhole wedge configuration 134 in the portion of the downhole barrel passage 208 that defines the narrowest portion of the downhole barrel passage 208, which, in some embodiments, for example, is defined by the downhole barrel cap 224, to avoid induction of a stress concentration in the downhole portion 124 of the composite rod 120.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the downhole rod segment connector 154 by the adjacent downhole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120, the uphole wedge configuration 132 is urged to displace, relative to the uphole wedge configuration counterpart 142, in a downhole direction. In some embodiments, for example, in response to such displacement of the uphole wedge configuration 132, relative to the uphole wedge configuration counterpart 142, there is an absence of emplacement of the uphole wedge configuration 132 in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206, which, in some embodiments, for example, is defined by the uphole barrel cap 222, to avoid induction of a stress concentration in the uphole portion 122 of the composite rod 120.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the downhole rod segment connector 154 by the adjacent downhole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120: a tensile force is applied to the adjacent uphole rod segment via the uphole rod segment connector 152. In some embodiments, for example, the tensile force that is applied to the adjacent uphole rod segment has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120. In some embodiments, for example, the tensile force that is applied to the adjacent uphole rod segment via the uphole rod segment connector 152 is transmitted from the downhole rod segment connector 154 via: (i) the threaded connection between the end cap 234 and the barrel 204, (ii) the friction and the interference established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, (iii) the fusion bonding between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120, (iv) the fusion bonding between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120, (v) the friction and the interference established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, and (vi) the threaded connection between the end cap 232 and the barrel 202.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120, the downhole wedge configuration 134 is urged to displace, relative to the downhole wedge configuration counterpart 144, in an uphole direction. In some embodiments, for example, in response to such displacement of the downhole wedge configuration 134, relative to the downhole wedge configuration counterpart 144, there is an absence of emplacement of the downhole wedge configuration 134 in the portion of the downhole barrel passage 208 that defines the narrowest portion of the downhole barrel passage 208, which, in some embodiments, for example, is defined by the downhole barrel cap 224, to avoid induction of a stress concentration in the downhole portion 124 of the composite rod 120.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120, the uphole wedge configuration 132 is urged to displace, relative to the uphole wedge configuration counterpart 142, in a downhole direction. In some embodiments, for example, in response to such displacement of the uphole wedge configuration 132, relative to the uphole wedge configuration counterpart 142, there is an absence of emplacement of the uphole wedge configuration 132 in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206, which, in some embodiments, for example, is defined by the uphole barrel cap 222, to avoid induction of a stress concentration in the uphole portion 122 of the composite rod 120.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, the composite rod 120, the uphole wedge configuration 132, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the downhole wedge configuration 134, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120: a tensile force is applied to the adjacent downhole rod segment via the downhole rod segment connector 154. In some embodiments, for example, the tensile force that is applied to the adjacent downhole rod segment has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120. In some embodiments, for example, the tensile force that is applied to the adjacent downhole rod segment via the downhole rod segment connector 154 is transmitted from the uphole rod segment connector 152 via: (i) the threaded connection between the end cap 232 and the barrel 202, (ii) the friction and the interference established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, (iii) the fusion bonding between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120, (iv) the fusion bonding between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120, (v) the friction and the interference established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, and (vi) the threaded connection between the end cap 234 and the barrel 204.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication the uphole wedge configuration 132 and the uphole wedge configuration counterpart 142, in response to tensile force F_Tthat is applied to the uphole rod segment connector 152, for example, by an adjacent uphole sucker rod segment, the tensile force F_Tis transferred to the composite rod 120, via: (i) the fusion bonding between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120, (ii) the friction and interference established between the outer surface 135 of the uphole wedge configuration 132 and the inner surface 143 of the uphole wedge configuration counterpart 142, and (iii) the threaded connection between the end cap 232 and the barrel 202.

In some embodiments, for example, while the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication the downhole wedge configuration 134 and the downhole wedge configuration counterpart 144, in response to tensile force F_Tthat is applied to the downhole rod segment connector 154, for example, by an adjacent downhole sucker rod segment, the tensile force F_Tis transferred to the composite rod 120, via: (i) the fusion bonding between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120, (ii) the friction and interference established between the outer surface 137 of the downhole wedge configuration 134 and the inner surface 145 of the downhole wedge configuration counterpart 144, and (iii) the threaded connection between the end cap 234 and the barrel 204.

In some embodiments, for example, the tensile force FT in the composite rod 120 is opposed by: (i) the fusion bonding between the uphole wedge configuration 132 and the uphole portion 122 of the composite rod 120, and (ii) the fusion bonding between the downhole wedge configuration 134 and the downhole portion 124 of the composite rod 120.

In some embodiments, for example, the force applied to the uphole and downhole wedge configuration 132 and 134 by the respective uphole and downhole wedge configuration counterpart 142 and 144, and in response to the force applied to the respective uphole and downhole wedge configuration counterpart 142 and 144 by the uphole and downhole wedge configuration 132 and 134, oppose the tensile force F_Tapplied to the sucker rod segment 10.

In some embodiments, for example, the uphole wedge configuration 132 includes one uphole wedge 132A, and (ii) the downhole wedge configuration 134 includes one downhole wedge 134A, while the composite rod 120 is formed and cut to the desired length, the composite rod 120 is emplaced in the barrel 202, for example, by displacing the composite rod 120 through the barrel port 252. The emplacement of the uphole portion 122 of the composite rod 120 in the barrel 202 is such that the uphole portion 122 is emplaced in the barrel passage 206, and that the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 143 of the uphole wedge configuration counterpart 142, are emplaced in opposing relationship. While the outer surface 126 of the uphole portion 122 of the composite rod 120 and the uphole wedge configuration counterpart 142 are emplaced in opposing relationship, a space is defined between the inner surface 143 of the uphole wedge configuration counterpart 142 and the outer surface 126 of the uphole portion 122 of the composite rod 120, the space configured to receive the uphole wedge 132A. While the space is defined between the inner surface 143 of the uphole wedge configuration counterpart 142 and the outer surface 126 of the uphole portion 122 of the composite rod 120, the uphole wedge 132A is emplaced in the space, such that the uphole wedge 132A is emplaced between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120. While the uphole wedge 132A is emplaced in the space, the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in opposing relationship, and the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120 are emplaced in opposing relationship. In some embodiments, for example, at this point, the matrix material configuration 20 of the outer surface 126 of the uphole portion 122 of the composite rod 120 is deformable (e.g. via heating of the matrix material configuration 20 of the outer surface 126). At this point, the end cap 232 and the barrel 202 are connected together, for example, via a threaded connection, to integrate the end cap 232 and the barrel 202. While the connection between the end cap 232 and the barrel 202 is being established (e.g. while the end cap 232 is being threaded on the barrel 202), the end cap 232 is displaced towards the uphole wedge 132A, such that the end cap 232 becomes emplaced in abutting engagement with the uphole wedge 132A. At this point, in response to further establishing of the connection between the end cap 232 and the barrel 202 (e.g. in response to further threading of the end cap 232 on the barrel 202), a force is applied to the uphole wedge 132A, by the end cap 232, the force having a direction towards the uphole wedge configuration counterpart 142. In some embodiments, the force applied to the uphole wedge 132A by the end cap 232 has a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120. In response to the force applied to the uphole wedge 132A by the end cap 232, the uphole wedge 132A is displaced in a direction towards the uphole wedge configuration counterpart 142, for example, in a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120, such that the uphole wedge 132A becomes emplaced in abutting engagement with the uphole wedge configuration counterpart 142. At this point, to set the uphole wedge 132A between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, such that the uphole wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, the connection between the end cap 232 and the barrel 202 is further established (e.g. in response to further threading of the end cap 232 on the barrel 202). In response to further establishing of the connection between the end cap 232 and the barrel 202 (e.g. in response to further threading of the end cap 232 on the barrel 202), a force is further applied to the uphole wedge 132A, by the end cap 232, the force having a direction towards the uphole wedge configuration counterpart 142. In some embodiments, the force further applied to the uphole wedge 132A by the end cap 232 has a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120. In response to the force further applied to the uphole wedge 132A by the end cap 232, a force F_Cis applied to the uphole wedge 132A by the uphole wedge configuration counterpart 142, the force F_Chaving a direction towards the uphole portion 122 of the composite rod 120. In some embodiments, for example, the force F_Chas a direction towards the central longitudinal axis of the composite rod 120. In response to the force F_Capplied to the uphole wedge 132A by the uphole wedge configuration counterpart 142, the uphole wedge 132A is displaced, relative to the composite rod 120, in a direction towards the uphole portion 122 of the composite rod 120, for example, in a direction towards the central longitudinal axis of the composite rod 120.

In some embodiments, for example, the wedging of the uphole wedge 132A between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120 is such that there is an absence of emplacement of the uphole wedge 132A in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206, which, in some embodiments, for example, is defined by the uphole barrel cap 222. It is desirable to have an absence of emplacement of the uphole wedge 132A in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206 to avoid induction of a stress concentration in the uphole portion 122 of the composite rod 120.

In some embodiments, for example, in response to the connection of the end cap 232 and the barrel 202, the end cap 232 and the uphole wedge 132A are co-operatively configured such that the uphole wedge configuration retainer 242 opposes movement, of the uphole wedge 132A, that is effective for defeating the uphole wedged configuration. In some embodiments, the connection of the end cap 232 and the barrel 202 is with effect that the uphole wedge configuration retainer 242 becomes emplaced in abutting engagement with the uphole wedge 132A for opposing movement, of the uphole wedge 132A, that is effective for defeating the uphole wedged configuration.

In response to the displacement of the uphole wedge 132A, relative to the composite rod 120, in the direction towards the uphole portion 122 of the composite rod 120, for example, in a direction towards the central longitudinal axis of the composite rod 120, a force is applied to the outer surface 126 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge 132A. In response to the force applied to the outer surface 126 of the uphole portion 122 of the composite rod 120 by the uphole wedge 132A: (i) friction F_Fis established between the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and (ii) the outer surface 126 is deformed, such that the non-linear outer surface 127 is defined. In some embodiments, for example, in response to the displacement of the uphole wedge 132A in the direction towards the uphole portion 122 of the composite rod 120, a compressive force is applied by the uphole wedge 132A to the uphole portion 122 of the composite rod 120, such that the uphole portion 122 of the composite rod 120 is compressed by the uphole wedge 132A. In response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge 132A, the outer surface 126 of the uphole portion 122 of the composite rod 120 is compressed by the inner surface 136 of the uphole wedge 132A. In response to the compression of the outer surface 126 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge 132A: (i) friction F_Fis established between the surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and (ii) the outer surface 126 is deformed, such that the non-linear outer surface 127 is defined. In some embodiments, for example, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge 132A, a compressive stress is induced within the composite rod 120, for example, within the uphole portion 122 of the composite rod 120.

At this point, the uphole wedge 132A and the uphole portion 122 of the composite rod 120 are mechanically integrated, such that: (i) the friction is established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of uphole wedge 132A, and (ii) the interference is established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the uphole wedge 132A. Furthermore, the uphole wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, such that: (i) friction is established between the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142, (ii) the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in abutting engagement such that the interference is established for opposing, for example, preventing, displacement of the uphole wedge 132A, relative to the uphole wedge configuration counterpart 142, in a downhole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and also for opposing, for example, preventing, displacement of the uphole wedge configuration counterpart 142, relative to the uphole wedge 132A, in an uphole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and (iii) the uphole wedge 132A and the uphole wedge configuration counterpart 142 are emplaced in force transmission communication. In addition, the end cap 232 and the barrel 202 are integrated, for example, via the threaded connection. At this point, the matrix material configuration 20 of the outer surface 126 of the uphole portion 122 of the composite rod 120 is cooled, such that it is not being deformed by the force applied to the outer surface 126 by the inner surface 136 of the uphole wedge 132A for defining the non-linear outer surface 127.

At this point, the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedge 132A and the uphole wedge configuration counterpart 142, such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, for example, the tensile force having a direction that is parallel to the longitudinal axis of the composite rod 120, a tensile force, for example, having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the composite rod 120.

The mechanical integration of the downhole wedge 134A to the downhole portion 124 of the composite rod 120, and the configuration of the composite rod 120, the downhole wedge 134A, the downhole barrel 204, and the end cap 234, such that the downhole wedge 134A is wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120 and that the end cap 234 is connected to the barrel 204 with effect that the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedge 134A and the downhole wedge configuration counterpart 144, is similar to that which has been described above for the uphole wedge 132A, the uphole wedge configuration counterpart 134, the uphole barrel 202, and the end cap 232.

In some embodiments, for example, the uphole wedge configuration 132 includes more than one uphole wedge 132A, and the downhole wedge configuration 134 includes more than one downhole wedge 134A, as depicted in FIG. 15 to FIG. 18, while the composite rod 120 is formed and cut to the desired length, the composite rod 120 is emplaced in the barrel 202, such that the uphole portion 122 is emplaced in the barrel passage 206, and that the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in opposing relationship. While the outer surface 126 of the uphole portion 122 of the composite rod 120 and the uphole wedge configuration counterpart 142 are emplaced in opposing relationship, a space is defined between the inner surface 143 of the uphole wedge configuration counterpart 142 and the outer surface 126 of the uphole portion 122 of the composite rod 120, the space configured to receive an uphole wedge 132A. For each one of the uphole wedges 132A, independently, while the space is defined between the inner surface 143 of the uphole wedge configuration counterpart 142 and the outer surface 126 of the uphole portion 122 of the composite rod 120, the uphole wedge 132A is emplaced in the space, such that the uphole wedge 132A is emplaced between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120. For each one of the uphole wedges 132A, independently, while the uphole wedge 132A is emplaced in the space, the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in opposing relationship, and the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120 are emplaced in opposing relationship. In some embodiments, for example, at this point, the matrix material configuration 20 of the surface 126 of the uphole portion 122 of the composite rod 120 is deformable (e.g. via heating of the matrix material configuration 20 of the surface 126). At this point, the end cap 232 and the barrel 202 are connected together, for example, via a threaded connection, to integrate the end cap 232 and the barrel 202. While the connection between the end cap 232 and the barrel 202 is being established (e.g. while the end cap 232 is being threaded on the barrel 202), for each one of the uphole wedges 132A, independently, the end cap 232 is displaced towards the uphole wedge 132A, such that the end cap 232 becomes emplaced in abutting engagement with the uphole wedge 132A. At this point, for each one of the uphole wedges 132A, independently, in response to further establishing of the connection between the end cap 232 and the barrel 202 (e.g. in response to further threading of the end cap 232 on the barrel 202), a force is applied to the uphole wedge 132A, by the end cap 232, the force having a direction towards the uphole wedge configuration counterpart 142. In some embodiments, for example, for each one of the uphole wedges 132A, independently, the force applied to the uphole wedge 132A by the end cap 232 has a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120. For each one of the uphole wedges 132A, independently, in response to the force applied to the uphole wedge 132A by the end cap 232, the uphole wedge 132A is displaced in a direction towards the uphole wedge configuration counterpart 142, for example, in a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120, such that the uphole wedge 132A becomes emplaced in abutting engagement with the uphole wedge configuration counterpart 142. At this point, for each one of the uphole wedges 132A, independently, to set the uphole wedge 132A between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, such that the uphole wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, the connection between the end cap 232 and the barrel 202 is further established (e.g. in response to further threading of the end cap 232 on the barrel 202). In response to further establishing of the connection between the end cap 232 and the barrel 202 (e.g. in response to further threading of the end cap 232 on the barrel 202), for each one of the uphole wedges 132A, independently, a force is further applied to the uphole wedge 132A, by the end cap 232, the force having a direction towards the uphole wedge configuration counterpart 142. In some embodiments, for each one of the uphole wedges 132A, independently, the force further applied to the uphole wedge 132A by the end cap 232 has a direction along an axis that is parallel to the central longitudinal axis of the composite rod 120. For each one of the uphole wedges 132A, independently, in response to the force further applied to the uphole wedge 132A by the end cap 232, a force F_Cis applied to the uphole wedge 132A by the uphole wedge configuration counterpart 142, the force F_Chaving a direction towards the uphole portion 122 of the composite rod 120. In some embodiments, for example, the force F_Chas a direction towards the central longitudinal axis of the composite rod 120. For each one of the uphole wedges 132A, independently, in response to the force F_Capplied to the uphole wedge 132A by the uphole wedge configuration counterpart 142, the uphole wedge 132A is displaced, relative to the composite rod 120, in a direction towards the uphole portion 122 of the composite rod 120, for example, in a direction towards the central longitudinal axis of the composite rod 120.

In some embodiments, for example, for each one of the uphole wedges 132A, independently, the wedging of the uphole wedge 132A between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120 is such that there is an absence of emplacement of the uphole wedge 132A in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206, which, in some embodiments, for example, is defined by the uphole barrel cap 222. For each one of the uphole wedges 132A, independently, it is desirable to have an absence of emplacement of the uphole wedge 132A in the portion of the uphole barrel passage 206 that defines the narrowest portion of the uphole barrel passage 206 to avoid induction of a stress concentration in the uphole portion 122 of the composite rod 120.

In some embodiments, for example, in response to the connection of the end cap 232 and the barrel 202, for each one of the uphole wedges 132A, independently, the end cap 232 and the uphole wedge 132A are co-operatively configured such that the uphole wedge configuration retainer 242 opposes movement, of the uphole wedge 132A, that is effective for defeating the uphole wedged configuration. In some embodiments, for example, for each one of the uphole wedges 132A, independently, the connection of the end cap 232 and the barrel 202 is with effect that the uphole wedge configuration retainer 242 becomes emplaced in abutting engagement with the uphole wedge 132A for opposing movement, of the uphole wedge 132A, that is effective for defeating the uphole wedged configuration.

For each one of the uphole wedges 132A, independently, in response to the displacement of the uphole wedge 132A, relative to the composite rod 120, in the direction towards the uphole portion 122 of the composite rod 120, for example, in a direction towards the central longitudinal axis of the composite rod 120, a force is applied to the outer surface 126 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge 132A. For each one of the uphole wedges 132A, independently, in response to the force applied to the outer surface 126 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge 132A: (i) friction F_Fis established between the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and (ii) the outer surface 126 is deformed, such that the non-linear outer surface 127 is defined. In some embodiments, for example, for each one of the uphole wedges 132A, independently, in response to the displacement of the uphole wedge 132A in the direction towards the uphole portion 122 of the composite rod 120, a compressive force is applied by the uphole wedge 132A to the uphole portion 122 of the composite rod 120, such that the uphole portion 122 of the composite rod 120 is compressed by the uphole wedge 132A. For each one of the uphole wedges 132A, independently, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge 132A, the outer surface 126 of the uphole portion 122 of the composite rod 120 is compressed by the inner surface 136 of the uphole wedge 132A. For each one of the uphole wedges 132A, independently, in response to the compression of the outer surface 126 of the uphole portion 122 of the composite rod 120 by the inner surface 136 of the uphole wedge 132A: (i) friction F_Fis established between the surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and (ii) the outer surface 126 is deformed, such that the non-linear outer surface 127 is defined. In some embodiments, for example, for each one of the uphole wedges 132A, independently, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedge 132A, a compressive stress is induced within the composite rod 120, for example, within the uphole portion 122 of the composite rod 120. In some embodiments, for example, in response to the compression of the uphole portion 122 of the composite rod 120 by the uphole wedges 132A, the uphole portion 122 of the composite rod 120 is clamped by the uphole wedges 132A.

At this point, in some embodiments, for example, for each one of the uphole wedged 132A, independently, the uphole wedge 132A and the uphole portion 122 of the composite rod 120 are mechanically integrated, such that: (i) the friction is established between the outer surface 126 of the uphole portion 122 of the composite rod 120 and the inner surface 136 of the uphole wedge 132A, and (ii) the interference is established by the co-operative configuration of the non-linear outer surface 127 of the composite rod 120 and the inner surface 136 of the uphole wedge 132A. Furthermore, for each one of the uphole wedges 132A, independently, the uphole wedge 132A is wedged between the uphole wedge configuration counterpart 142 and the uphole portion 122 of the composite rod 120, such that: (i) friction is established between the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142, (ii) the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142 are emplaced in abutting engagement such that the interference is established for opposing, for example, preventing, displacement of the uphole wedge 132A, relative to the uphole wedge configuration counterpart 142, in a downhole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and also for opposing, for example, preventing, displacement of the uphole wedge configuration counterpart 142, relative to the uphole wedge 132A, in an uphole direction along an axis that is parallel to a longitudinal axis of the composite rod 120, and (iii) the uphole wedge 132A and the uphole wedge configuration counterpart 142 are emplaced in force transmission communication. In addition, the end cap 232 and the barrel 202 are integrated, for example, via the threaded connection. At this point, the matrix material configuration 20 of the surface 126 of the uphole portion 122 of the composite rod 120 is cooled, such that it is not being deformed by the forces applied to the outer surface 126 by the uphole wedges 132A for defining the non-linear outer surface 127.

At this point, the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the uphole wedges 132A and the uphole wedge configuration counterpart 142, such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, for example, the tensile force having a direction that is parallel to the longitudinal axis of the composite rod 120, a tensile force, for example, having a direction that is parallel to a longitudinal axis of the composite rod 120, is applied to the composite rod 120.

The mechanical integration of the downhole wedges 134A to the downhole portion 124 of the composite rod 120, and the configuration of the composite rod 120, the downhole wedges 134A, the downhole barrel 204, and the end cap 234, such that the downhole wedges 134A are wedged between the downhole wedge configuration counterpart 144 and the downhole portion 124 of the composite rod 120 and that the end cap 234 is connected to the barrel 204 with effect that the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the downhole wedges 132A and the downhole wedge configuration counterpart 142, is similar to that which has been described above for the uphole wedges 132A, the uphole wedge configuration counterpart 134, the uphole barrel 202, and the end cap 232.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the one or more uphole wedges 132A and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the one or more downhole wedges 134A and the downhole wedge configuration counterpart 144, the composite rod 120, the one or more uphole wedges 132A, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the one or more downhole wedges 134A, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the downhole rod segment connector 154 by the adjacent downhole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120: a tensile force is applied to the adjacent uphole rod segment via the uphole rod segment connector 152. In some embodiments, for example, the tensile force that is applied to the adjacent uphole rod segment has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120. In some embodiments, for example, the tensile force that is applied to the adjacent uphole rod segment via the uphole rod segment connector 152 is transmitted from the downhole rod segment connector 154 via, for each one of the one or more downhole wedges 134A, independently, and for each one of the one or more uphole wedges 132A, independently: (i) the threaded connection between the end cap 234 and the barrel 204, (ii) the friction and the interference established between the outer surface 137 of the downhole wedge 134A and the inner surface 145 of the downhole wedge configuration counterpart 144, (iii) the friction F_Festablished between the inner surface 138 of the downhole wedge 134A and the outer surface 126 of the downhole portion 124 of the composite rod 120, and the interference established by the co-operative configuration of the inner surface 138 of the downhole wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120, (iv) the friction F_Festablished between the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and the interference established by the co-operative configuration of the inner surface 136 of the uphole wedge 132A and the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120, (v) the friction and the interference established between the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142, and (vi) the threaded connection between the end cap 232 and the barrel 202.

In some embodiments, for example, while the composite rod 120 and the uphole rod segment connector 152 are emplaced in force transmission communication via the one or more uphole wedges 132A and the uphole wedge configuration counterpart 142 and the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the one or more downhole wedges 134A and the downhole wedge configuration counterpart 144, the composite rod 120, the one or more uphole wedges 132A, the uphole wedge configuration counterpart 142, the uphole rod segment connector 152, the one or more downhole wedges 134A, the downhole wedge configuration counterpart 144, and the downhole rod segment connector 154 are co-operatively configured such that, while the uphole rod segment connector 152 is connected to the adjacent uphole rod segment and the downhole rod segment connector 154 is connected to the adjacent downhole rod segment, and a tensile force is being applied to the uphole rod segment connector 152 by the adjacent uphole rod segment, which, in some embodiments, for example, has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120: a tensile force is applied to the adjacent downhole rod segment via the downhole rod segment connector 154. In some embodiments, for example, the tensile force that is applied to the adjacent downhole rod segment has a direction along an axis that is parallel to a longitudinal axis of the composite rod 120. In some embodiments, for example, the tensile force that is applied to the adjacent downhole rod segment via the downhole rod segment connector 154 is transmitted from the uphole rod segment connector 152 via, for each one of the one or more downhole wedges 134A, independently, and for each one of the one or more uphole wedges 132A, independently: (i) the threaded connection between the end cap 232 and the barrel 202, (ii) the friction and the interference established between the outer surface 135 of the uphole wedge 132A and the inner surface 143 of the uphole wedge configuration counterpart 142, (iii) the friction F_Festablished between the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, and the interference established by the co-operative configuration of the inner surface 136 of the uphole wedge 132A and the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120, (iv) the friction F_Festablished between the inner surface 138 of the downhole wedge 134A and the outer surface 126 of the downhole portion 124 of the composite rod 120, and the interference established by the co-operative configuration of the inner surface 138 of the downhole wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120, (v) the friction and the interference established between the outer surface 137 of the downhole wedge 134A and the inner surface 145 of the downhole wedge configuration counterpart 144, and (vi) the threaded connection between the end cap 234 and the barrel 204.

In some embodiments, for example, while the composite rod 120 and the downhole rod segment connector 154 are emplaced in force transmission communication via the one or more downhole wedges 134A and the downhole wedge configuration counterpart 144, in response to tensile force F_Tthat is applied to the downhole rod segment connector 154, for example, by an adjacent downhole sucker rod segment, the tensile force F_Tis transferred to the composite rod 120, via: for each one of the one or more downhole wedges 134A, independently, (i) the friction F_Festablished between the inner surface 138 of the downhole wedge 134A and the outer surface 126 of the downhole portion 124 of the composite rod 120, and the interference established by the co-operative configuration of the inner surface 138 of the downhole wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120, (ii) the friction and the interference established between the outer surface 137 of the downhole wedge 134A and the inner surface 145 of the downhole wedge configuration counterpart 144, and (iii) the threaded connection between the end cap 234 and the barrel 204.

In some embodiments, for example, the tensile force F_Tin the composite rod 120 is opposed by: for each one of the one or more uphole wedges 132A, independently, (i) the friction F_Festablished between the inner surface 136 of the uphole wedge 132A and the outer surface 126 of the uphole portion 122 of the composite rod 120, (ii) the interference established by the co-operative configuration of the inner surface 136 of the uphole wedge 132A and the non-linear outer surface 127 of the uphole portion 122 of the composite rod 120, and, for each one of the one or more downhole wedges 134A, independently, (iii) the friction F_Festablished between the inner surface 138 of the downhole wedge 134A and the outer surface 128 of the downhole portion 124 of the composite rod 120, and (iv) the interference established by the co-operative configuration of the inner surface 138 of the downhole wedge 134A and the non-linear outer surface 129 of the downhole portion 124 of the composite rod 120.

In some embodiments, for example, for each one of the one or more uphole and downhole wedges 132A, 134A, independently, the force applied to the uphole and downhole wedge 132A and 134A by the respective uphole and downhole wedge configuration counterpart 142 and 144, in response to the force applied to the respective uphole and downhole wedge configuration counterpart 142 and 144 by the uphole and downhole wedge 132A and 134A, oppose the tensile force F_Tapplied to the sucker rod segment 10.

The preceding discussion provides many example embodiments. Although each embodiment represents a single combination of inventive elements, other examples may include all suitable combinations of the disclosed elements. Thus if one embodiment comprises elements A, B, and C, and a second embodiment comprises elements B and D, other remaining combinations of A, B, C, or D, may also be used.

The term “connected” or “coupled to” may include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements).

Although the embodiments have been described in detail, it should be understood that various changes, substitutions and alterations could be made herein.

Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, and composition of matter, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, manufacture, compositions of matter, means, methods, or steps, presently existing or later to be developed, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.

As can be understood, the examples described above and illustrated are intended to be examples only. The invention is defined by the appended claims.

	Number	Date	Country
	63491020	Mar 2023	US
	63593380	Oct 2023	US

COMPOSITE SUCKER ROD SEGMENT

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