Patent Grant
6976541
This invention relates generally to wellbore casings, and in particular to wellbore casings that are formed using expandable tubing.
Conventionally, when a wellbore is created, a number of casings are installed in the borehole to prevent collapse of the borehole wall and to prevent undesired outflow of drilling fluid into the formation or inflow of fluid from the formation into the borehole. The borehole is drilled in intervals whereby a casing which is to be installed in a lower borehole interval is lowered through a previously installed casing of an upper borehole interval. As a consequence of this procedure the casing of the lower interval is of smaller diameter than the casing of the upper interval. Thus, the casings are in a nested arrangement with casing diameters decreasing in downward direction. Cement annuli are provided between the outer surfaces of the casings and the borehole wall to seal the casings from the borehole wall. As a consequence of this nested arrangement a relatively large borehole diameter is required at the upper part of the wellbore. Such a large borehole diameter involves increased costs due to heavy casing handling equipment, large drill bits and increased volumes of drilling fluid and drill cuttings. Moreover, increased drilling rig time is involved due to required cement pumping, cement hardening, required equipment changes due to large variations in hole diameters drilled in the course of the well, and the large volume of cuttings drilled and removed.
The present invention is directed to overcoming one or more of the limitations of the existing procedures for forming wellbores.
According to one aspect of the invention, a method of forming a wellbore casing within a borehole within a subterranean formation is provided that includes positioning an expandable tubular member within the borehole, injecting fluidic materials into the expandable tubular member, fluidicly isolating a first region from a second region within the expandable tubular member, fluidicly coupling the first and second regions, injecting a hardenable fluidic sealing material into the expandable tubular member, fluidicly decoupling the first and second regions, and injecting a non-hardenable fluidic material into the expandable tubular member to radially expand the tubular member.
According to another aspect of the present invention, an apparatus for forming a wellbore casing within a borehole within a subterranean formation is provided that includes means for positioning an expandable tubular member within the borehole, means for injecting fluidic materials into the expandable tubular member, means for fluidicly isolating a first region from a second region within the expandable tubular member, means for fluidicly coupling the first and second regions, means for injecting a hardenable fluidic sealing material into the expandable tubular member, means for fluidicly decoupling the first and second regions, and means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand the tubular member.
According to another aspect of the present invention, a method of forming a wellbore casing within a borehole within a subterranean formation is provided that includes positioning an expandable tubular member within the borehole, injecting fluidic materials into the expandable tubular member, fluidicly isolating a first region from a second region within the expandable tubular member, injecting a non-hardenable fluidic material into the expandable tubular member to radially expand at least a portion of the tubular member, fluidicly coupling the first and second regions, injecting a hardenable fluidic sealing material into the expandable tubular member, fluidicly decoupling the first and second regions, and injecting a non-hardenable fluidic material into the expandable tubular member to radially expand another portion of the tubular member.
According to another aspect of the present invention, an apparatus for forming a wellbore casing within a borehole within a subterranean formation is provided that includes means for positioning an expandable tubular member within the borehole, means for injecting fluidic materials into the expandable tubular member, means for fluidicly isolating a first region from a second region within the expandable tubular member, means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand at least a portion of the tubular member, means for fluidicly coupling the first and second regions, means for injecting a hardenable fluidic sealing material into the expandable tubular member, means for fluidicly decoupling the first and second regions, and means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand another portion of the tubular member.
According to another aspect of the present invention, an apparatus for forming a wellbore casing within a borehole within a subterranean formation is provided that includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having first and second throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve.
According to another aspect of the present invention, an apparatus for forming a wellbore casing in a borehole in a subterranean formation is provided that includes means for radially expanding an expandable tubular member and means for injecting a hardenable fluidic sealing material into an annulus between the expandable tubular member and the borehole.
According to another aspect of the present invention, a method of operating an apparatus for forming a wellbore casing within a borehole within a subterranean formation is provided. The apparatus includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having top and bottom throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve. The method includes positioning the apparatus within the borehole, injecting fluidic materials into the first, second and third fluid passages, positioning a bottom plug in the bottom throat passage, displacing the annular sleeve to fluidicly couple the second and third radial passages, injecting a hardenable fluidic sealing material through the first, second, and third fluid passages, and the second and third radial passages, displacing the annular sleeve to fluidicly decouple the second and third radial passages, and injecting a non-hardenable fluidic material through the first fluid passage and the first radial passages and pressure sensitive valves into the annular region to radially expand the expandable tubular member.
According to another aspect of the present invention, a method of operating an apparatus for forming a wellbore casing within a borehole within a subterranean formation is provided in which the apparatus includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having top and bottom throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve. The method includes positioning the apparatus within the borehole, injecting fluidic materials into the first, second and third fluid passages, positioning a bottom plug in the bottom throat passage, injecting a non-hardenable fluidic material through the first fluid passages and the first radial passages and pressure sensitive valves into the annular region to radially expand a portion of the expandable tubular member, displacing the annular sleeve to fluidicly couple the second and third radial passages, injecting a hardenable fluidic sealing material through the first, second, and third fluid passages, and the second and third radial passages, displacing the annular sleeve to fluidicly decouple the second and third radial passages, and injecting a non-hardenable fluidic material through the first fluid passage and the first radial passages and pressure sensitive valves into the annular region to radially expand another portion of the expandable tubular member.
According to one aspect of the invention, a method of coupling an expandable tubular member to a preexisting structure is provided that includes positioning an expandable tubular member within the preexisting structure, injecting fluidic materials into the expandable tubular member, fluidicly isolating a first region from a second region within the expandable tubular member, fluidicly coupling the first and second regions, injecting a hardenable fluidic sealing material into the expandable tubular member, fluidicly decoupling the first and second regions, and injecting a non-hardenable fluidic material into the expandable tubular member to radially expand the tubular member.
According to another aspect of the present invention, an apparatus for coupling an expandable tubular member to a preexisting structure is provided that includes means for positioning the expandable tubular member within the preexisting structure, means for injecting fluidic materials into the expandable tubular member, means for fluidicly isolating a first region from a second region within the expandable tubular member, means for fluidicly coupling the first and second regions, means for injecting a hardenable fluidic sealing material into the expandable tubular member, means for fluidicly decoupling the first and second regions, and means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand the tubular member.
According to another aspect of the present invention, a method of coupling an expandable tubular member to a preexisting structure is provided that includes positioning the expandable tubular member within the preexisting structure, injecting fluidic materials into the expandable tubular member, fluidicly isolating a first region from a second region within the expandable tubular member, injecting a non-hardenable fluidic material into the expandable tubular member to radially expand at least a portion of the tubular member, fluidicly coupling the first and second regions, injecting a hardenable fluidic sealing material into the expandable tubular member, fluidicly decoupling the first and second regions, and injecting a non-hardenable fluidic material into the expandable tubular member to radially expand another portion of the tubular member.
According to another aspect of the present invention, an apparatus for coupling an expandable tubular member to a preexisting structure is provided that includes means for positioning the expandable tubular member within the preexisting structure, means for injecting fluidic materials into the expandable tubular member, means for fluidicly isolating a first region from a second region within the expandable tubular member, means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand at least a portion of the tubular member, means for fluidicly coupling the first and second regions, means for injecting a hardenable fluidic sealing material into the expandable tubular member, means for fluidicly decoupling the first and second regions, and means for injecting a non-hardenable fluidic material into the expandable tubular member to radially expand another portion of the tubular member.
According to another aspect of the present invention, an apparatus for coupling an expandable tubular member to a preexisting structure is provided that includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having first and second throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve.
According to another aspect of the present invention, an apparatus for coupling an expandable tubular member to a preexisting structure is provided that includes means for radially expanding an expandable tubular member and means for injecting a hardenable fluidic sealing material into an annulus between the expandable tubular member and the borehole.
According to another aspect of the present invention, a method of operating an apparatus for coupling an expandable tubular member to a preexisting structure is provided. The apparatus includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having top and bottom throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve. The method includes positioning the apparatus within the preexisting structure, injecting fluidic materials into the first, second and third fluid passages, positioning a bottom plug in the bottom throat passage, displacing the annular sleeve to fluidicly couple the second and third radial passages, injecting a hardenable fluidic sealing material through the first, second, and third fluid passages, and the second and third radial passages, displacing the annular sleeve to fluidicly decouple the second and third radial passages, and injecting a non-hardenable fluidic material through the first fluid passage and the first radial passages and pressure sensitive valves into the annular region to radially expand the expandable tubular member.
According to another aspect of the present invention, a method of operating an apparatus for coupling an expandable tubular member to a preexisting structure is provided in which the apparatus includes a first annular support member defining a first fluid passage and one or more first radial passages having pressure sensitive valves fluidicly coupled to the first fluid passage, an annular expansion cone coupled to the first annular support member, an expandable tubular member movably coupled to the expansion cone, a second annular support member defining a second fluid passage coupled to the expandable tubular member, an annular valve member defining a third fluid passage fluidicly coupled to the first and second fluid passages having top and bottom throat passages, defining second and third radial passages fluidicly coupled to the third fluid passage, coupled to the second annular support member, and movably coupled to the first annular support member, and an annular sleeve releasably coupled to the first annular support member and movably coupled to the annular valve member for controllably fluidicly coupling the second and third radial passages. An annular region is defined by the region between the tubular member and the first annular support member, the second annular support member, the annular valve member, and the annular sleeve. The method includes positioning the apparatus within the preexisting structure, injecting fluidic materials into the first, second and third fluid passages, positioning a bottom plug in the bottom throat passage, injecting a non-hardenable fluidic material through the first fluid passages and the first radial passages and pressure sensitive valves into the annular region to radially expand a portion of the expandable tubular member, displacing the annular sleeve to fluidicly couple the second and third radial passages, injecting a hardenable fluidic sealing material through the first, second, and third fluid passages, and the second and third radial passages, displacing the annular sleeve to fluidicly decouple the second and third radial passages, and injecting a non-hardenable fluidic material through the first fluid passage and the first radial passages and pressure sensitive valves into the annular region to radially expand another portion of the expandable tubular member.
a-1c are cross sectional illustrations of an embodiment of a liner hanger assembly including a sliding sleeve valve assembly.
a-2b is a flow chart illustration of an embodiment of a method for forming a wellbore casing using the liner hanger assembly of
a-3c are cross sectional illustrations of the placement of the liner hanger assembly of
a-4c are cross sectional illustrations of the injection of a fluidic materials into the liner hanger assembly of
a-5c are cross sectional illustrations of the placement of a bottom plug into the liner hanger assembly of
a-6c are cross sectional illustrations of the downward displacement of sliding sleeve of the liner hanger assembly of
a-7c are cross sectional illustrations of the injection of a hardenable fluidic sealing material into the liner hanger assembly of
a-8c are cross sectional illustrations of the placement of a top plug into the liner hanger assembly of
a-9c are cross sectional illustrations of the upward displacement of sliding sleeve of the liner hanger assembly of
a-10c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
a-11b is a flow chart illustration of an alternative embodiment of a method for forming a wellbore casing using the liner hanger assembly of
a-12c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
a-13c are cross sectional illustrations of the downward displacement of the sliding sleeve of the liner hanger assembly of
a-14c are cross sectional illustrations of the injection of a hardenable fluidic sealing material through the liner hanger assembly of
a-15c are cross sectional illustrations of the injection and placement of a top plug into the liner hanger assembly of
a-16c are cross sectional illustrations of the upward displacement of the sliding sleeve of the liner hanger assembly of
a-17c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
a-19b is a flow chart illustration of an embodiment of a method for forming a wellbore casing using the liner hanger assembly of
a-20c are cross sectional illustrations of the placement of the liner hanger assembly of
a-21c are cross sectional illustrations of the injection of a fluidic materials into the liner hanger assembly of
a-22c are cross sectional illustrations of the placement of a bottom plug into the liner hanger assembly of
a-23c are cross sectional illustrations of the downward displacement of sliding sleeve of the liner hanger assembly of
a-24c are cross sectional illustrations of the injection of a hardenable fluidic sealing material into the liner hanger assembly of
a-25c are cross sectional illustrations of the placement of a top plug into the liner hanger assembly of
a-26c are cross sectional illustrations of the upward displacement of sliding sleeve of the liner hanger assembly of
a-27c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
a-28b is a flow chart illustration of an alternative embodiment of a method for forming a wellbore casing using the liner hanger assembly of
a-29c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
a-30c are cross sectional illustrations of the downward displacement of the sliding sleeve of the liner hanger assembly of
a-31c are cross sectional illustrations of the injection of a hardenable fluidic sealing material through the liner hanger assembly of
a-32c are cross sectional illustrations of the injection and placement of a top plug into the liner hanger assembly of
a-33c are cross sectional illustrations of the upward displacement of the sliding sleeve of the liner hanger assembly of
a-34c are cross sectional illustrations of the injection of a pressurized fluidic material into the liner hanger assembly of
A liner hanger assembly having sliding sleeve bypass valve is provided. In several alternative embodiments, the liner hanger assembly provides a method and apparatus for forming or repairing a wellbore casing, a pipeline or a structural support.
Referring initially to
An annular expansion cone 18 defining an internal passage 18a for receiving the second and third tubular support members, 14 and 16, includes a counterbore 18b at one end, and a counterbore 18c at another end for receiving the flange 16b of the second tubular support member 16. The annular expansion cone 18 further includes an end face 18d that mates with an end face 16j of the flange 16c of the second tubular support member 16, and an exterior surface 18e having a conical shape in order to facilitate the radial expansion of tubular members. A tubular expansion cone launcher 20 is movably coupled to the exterior surface 18e of the expansion cone 18 and includes a first portion 20a having a first wall thickness, a second portion 20b having a second wall thickness, a threaded portion 20c at one end, and a threaded portion 20d at another end. In a preferred embodiment, the second portion 20b of the expansion cone launcher 20 mates with the conical outer surface 18e of the expansion cone 18. In a preferred embodiment, the second wall thickness is less than the first wall thickness in order to optimize the radial expansion of the expansion cone launcher 20 by the relative axial displacement of the expansion cone 18. In a preferred embodiment, one or more expandable tubulars are coupled to the threaded connection 20c of the expansion cone launcher 20. In this manner, the assembly 10 may be used to radially expand and plastically deform, for example, thousands of feet of expandable tubulars.
An annular spacer 22 defining an internal passage 22a for receiving the second tubular support member 14 is received within the counterbore 18b of the expansion cone 18, and is positioned between an end face 12d of the first tubular support member 12 and an end face of the counterbore 18b of the expansion cone 18. A fourth tubular support member 24 defining an internal passage 24a for receiving the second tubular support member 14 includes a flange 24b that is received within the counterbore 16d of the third tubular support member 16. A fifth tubular support member 26 defining an internal passage 26a for receiving the second tubular support member 14 includes an internal flange 26b for mating with the flange 14c of the second tubular support member and a flange 26c for mating with the internal flange 16g of the third tubular support member 16.
An annular sealing member 28, an annular sealing and support member 30, an annular sealing member 32, and an annular sealing and support member 34 are received within the counterbore 14d of the second tubular support member 14. The annular sealing and support member 30 further includes a radial opening 30a for supporting a rupture disc 36 within the radial opening 14g of the second tubular support member 14 and a sealing member 30b for sealing the radial opening 14h of the second tubular support member. The annular sealing and support member 34 further includes sealing members 34a and 34b for sealing the radial openings 14i and 14j, respectively, of the second tubular support member 14. In an exemplary embodiment, the rupture disc 36 opens when the operating pressure within the radial opening 30b is about 1000 to 5000 psi. In this manner, the rupture disc 36 provides a pressure sensitive valve for controlling the flow of fluidic materials through the radial opening 30a. In several alternative embodiments, the assembly 10 includes a plurality of radial passages 30a, each with corresponding rupture discs 36.
A sixth tubular support member 38 defining an internal passage 38a for receiving the second tubular support member 14 includes a threaded portion 38b at one end that is coupled to the threaded portion 16f of the third tubular support member 16 and a flange 38c at another end that is movably coupled to the interior of the expansion cone launcher 20. An annular collet 40 includes a threaded portion 40a that is coupled to the threaded portion 14e of the second tubular support member 14, and a resilient coupling 40b at another end.
An annular sliding sleeve 42 defining an internal passage 42a includes an internal flange 42b, having sealing members 42c and 42d, and an external groove 42e for releasably engaging the coupling 40b of the collet 40 at one end, and an internal flange 42f, having sealing members 42g and 42h, at another end. During operation the coupling 40b of the collet 40 may engage the external groove 42e of the sliding sleeve 42 and thereby displace the sliding sleeve in the longitudinal direction. Since the coupling 40b of the collet 40 is resilient, the collet 40 may be disengaged or reengaged with the sliding sleeve 42. An annular valve member 44 defining an internal passage 44a, having a first throat 44aa and a second throat 44ab, includes a flange 44b at one end, having external splines 44c for engaging the internal splines 14f of the second tubular support member 14, a first set of radial passages, 44da and 44db, a second set of radial passages, 44ea and 44eb, and a threaded portion 44f at another end. The sliding sleeve 42 and the valve member 44 define an annular bypass passage 46 that, depending upon the position of the sliding sleeve 42, permits fluidic materials to flow from the passage 44 through the first radial passages, 44da and 44db, the bypass passage 46, and the second radial passages, 44ea and 44eb, back into the passage 44. In this manner, fluidic materials may bypass the portion of the passage 44 between the first and second radial passages, 44ea, 44eb, 44da, and 44db. Furthermore, the sliding sleeve 42 and the valve member 44 together define a sliding sleeve valve for controllably permitting fluidic materials to bypass the intermediate portion of the passage 44a between the first and second passages, 44da, 44db, 44ea, and 44eb. During operation, the flange 44b limits movement of the sliding sleeve 42 in the longitudinal direction.
In a preferred embodiment, the collet 40 includes a set of couplings 40b such as, for example, fingers, that engage the external groove 42e of the sliding sleeve 42. During operation, the collet couplings 40b latch over and onto the external groove 42e of the sliding sleeve 42. In a preferred embodiment, a longitudinal force of at least about 10,000 to 13,000 lbf is required to pull the couplings 40b off of, and out of engagement with, the external groove 42e of the sliding sleeve 42. In an exemplary embodiment, the application of a longitudinal force less than about 10,000 to 13,000 lbf indicates that the collet couplings 40b are latched onto the external shoulder of the sliding sleeve 42, and that the sliding sleeve 42 is in the up or the down position relative to the valve member 44. In a preferred embodiment, the collet 40 includes a conventional internal shoulder that transfers the weight of the first tubular support member 12 and expansion cone 18 onto the sliding sleeve 42. In a preferred embodiment, the collet 40 further includes a conventional set of internal lugs for engaging the splines 44c of the valve member 44.
An annular valve seat 48 defining a conical internal passage 48a for receiving a conventional float valve element 50 includes an annular recess 48b, having an internally threaded portion 48c for engaging the threaded portion 44f of the valve member 44, at one end, and an externally threaded portion 48d at another end. In an alternative embodiment, the float valve element 50 is omitted. An annular valve seat mounting element 52 defining an internal passage 52a for receiving the valve seat 48 and float valve 50 includes an internally threaded portion 52b for engaging the externally threaded portion 48d of the valve seat 48, an externally threaded portion 52c, an internal flange 52d, radial passages, 52ea and 52eb, and an end member 52f, having axial passages, 52fa and 52fb.
A shoe 54 defining an internal passage 54a for receiving the valve seat mounting element 52 includes a first annular recess 54b, having an externally threaded portion 54c, and a second annular recess 54d, having an externally threaded portion 54e for engaging the threaded portion 20d of the expansion cone launcher 20, at one end, a first threaded counterbore 54f for engaging the threaded portion 52c of the of the mounting element, and a second counterbore 54g for mating with the end member 52f of the mounting element. In a preferred embodiment, the shoe 54 is fabricated from a ceramic and/or a composite material in order to facilitate the subsequent removal of the shoe by drilling. A seventh tubular support member 56 defining an internal passage 56a for receiving the sliding sleeve 42 and the valve member 44 is positioned within the expansion cone launcher 20 that includes an internally threaded portion 56b at one end for engaging the externally threaded portion 54c of the annular recess 54b of the shoe 54. In a preferred embodiment, during operation of the assembly, the end of the seventh tubular support member 56 limits the longitudinal movement of the expansion cone 18 in the direction of the shoe 54 by limiting the longitudinal movement of the sixth tubular support member 38. An annular centralizer 58 defining an internal passage 58a for movably supporting the sliding sleeve 42 is positioned within the seventh tubular support member 56 that includes axial passages 58b and 58c. In a preferred embodiment, the centralizer 58 maintains the sliding sleeve 42 and valve member 44 is a central position within the assembly 10.
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In an alternative embodiment of the method 200, the injection and placement of the top plug 116 into the liner hanger assembly 10 in step 212 may omitted.
In an alternative embodiment of the method 200, in step 202, the assembly 10 is positioned at the bottom of the wellbore 100.
In an alternative embodiment, as illustrated in
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In an alternative embodiment of the method 250, the injection and placement of the top plug 116 into the liner hanger assembly 10 in step 264 may omitted.
In an alternative embodiment of the method 250, in step 252, the assembly 10 is positioned at the bottom of the wellbore 100.
In an alternative embodiment of the method 250: (1) in step 252, the assembly 10 is positioned proximate a position below a preexisting section of the wellbore casing 102, and (2) in step 258, the expansion cone launcher 20, and any expandable tubulars coupled to the threaded portion 20c of the expansion cone launcher, are radially expanded and plastically deformed until the shoe 54 of the assembly 10 is proximate the bottom of the wellbore 100. In this manner, the radial expansion process using the assembly 10 provides a telescoping of the radially expanded tubulars into the wellbore 100.
In several alternative embodiments, the assembly 10 may be operated to form a wellbore casing by including or excluding the float valve 50.
In several alternative embodiments, the float valve 50 may be operated in an auto-fill configuration in which tabs are positioned between the float valve 50 and the valve seat 48. In this manner, fluidic materials within the wellbore 100 may flow into the assembly 10 from below thereby decreasing surge pressures during placement of the assembly 10 within the wellbore 100. Furthermore, pumping fluidic materials through the assembly 10 at rate of about 6 to 8 bbl/min will displace the tabs from the valve seat 48 and thereby allow the float valve 50 to close.
In several alternative embodiments, prior to the placement of any of the plugs, 110 and 116, into the assembly 10, fluidic materials can be circulated through the assembly 10 and into the wellbore 100.
In several alternative embodiments, once the bottom plug 110 has been positioned into the assembly 10, fluidic materials can only be circulated through the assembly 10 and into the wellbore 100 if the sliding sleeve 42 is in the down position.
In several alternative embodiments, once the sliding sleeve 42 is positioned in the down position, the passage 30a and rupture disc 36 are fluidicly isolated from pressurized fluids within the assembly 10.
In several alternative embodiments, once the top plug 116 has been positioned into the assembly 10, no fluidic materials can be circulated through the assembly 10 and into the wellbore 100.
In several alternative embodiments, the assembly 10 may be operated to form or repair a wellbore casing, a pipeline, or a structural support.
Referring to
A third tubular support member 316 defining an internal passage 316a for receiving the second tubular support member 314 includes a first flange 316b, a second flange 316c, a first counterbore 316d, a second counterbore 316e having an internally threaded portion 316f, and an internal flange 316g. The second flange 316c further includes radial passages 316h and 316i.
An annular expansion cone 318 defining an internal passage 318a for receiving the second and third tubular support members, 314 and 316, includes a counterbore 318b at one end, and a counterbore 318c at another end for receiving the flange 316b of the second tubular support member 316. The annular expansion cone 318 further includes an end face 318d that mates with an end face 316j of the flange 316c of the second tubular support member 316, and an exterior surface 318e having a conical shape in order to facilitate the radial expansion of tubular members. A tubular expansion cone launcher 320 is movably coupled to the exterior surface 318e of the expansion cone 318 and includes a first portion 320a having a first wall thickness, a second portion 320b having a second wall thickness, a threaded portion 320c at one end, and a threaded portion 320d at another end. In a preferred embodiment, the second portion 320b of the expansion cone launcher 320 mates with the conical outer surface 318e of the expansion cone 318. In a preferred embodiment, the second wall thickness of the second portion 320b is less than the first wall thickness of the first portion 320a in order to optimize the radial expansion of the expansion cone launcher 320 by the relative axial displacement of the expansion cone 318. In a preferred embodiment, one or more expandable tubulars are coupled to the threaded connection 320c of the expansion cone launcher 320. In this manner, the assembly 300 may be used to radially expand and plastically deform, for example, thousands of feet of expandable tubulars.
An annular spacer 322 defining an internal passage 322a for receiving the second tubular support member 314 is received within the counterbore 318b of the expansion cone 318, and is positioned between an end face 312d of the first tubular support member 312 and an end face of the counterbore 318b of the expansion cone 318. A fourth tubular support member 324 defining an internal passage 324a for receiving the second tubular support member 314 includes a flange 324b that is received within the counterbore 316d of the third tubular support member 316. A fifth tubular support member 326 defining an internal passage 326a for receiving the second tubular support member 314 includes an internal flange 326b for mating with the flange 314c of the second tubular support member and a flange 326c for mating with the internal flange 316g of the third tubular support member 316.
An annular sealing member 328, an annular sealing and support member 330, an annular sealing member 332, and an annular sealing and support member 334 are received within the counterbore 314d of the second tubular support member 314. The annular sealing and support member 330 further includes a radial opening 330a for supporting a rupture disc 336 within the radial opening 314g of the second tubular support member 314 and a sealing member 330b for sealing the radial opening 314h of the second tubular support member. The annular sealing and support member 334 further includes sealing members 334a and 334b for sealing the radial openings 314i and 314j, respectively, of the second tubular support member 314. In an exemplary embodiment, the rupture disc 336 opens when the operating pressure within the radial opening 330b is about 1000 to 5000 psi. In this manner, the rupture disc 336 provides a pressure sensitive valve for controlling the flow of fluidic materials through the radial opening 330a. In several alternative embodiments, the assembly 300 includes a plurality of radial passages 330a, each with corresponding rupture discs 336.
A sixth tubular support member 338 defining an internal passage 338a for receiving the second tubular support member 314 includes a threaded portion 338b at one end that is coupled to the threaded portion 316f of the third tubular support member 316 and a flange 338c at another end that is movably coupled to the interior of the expansion cone launcher 320. An annular collet 340 includes a threaded portion 340a that is coupled to the threaded portion 314e of the second tubular support member 314, and a resilient coupling 340b at another end.
An annular sliding sleeve 342 defining an internal passage 342a includes an internal flange 342b, having sealing members 342c and 342d, and an external groove 342e for releasably engaging the coupling 340b of the collet 340 at one end, and an internal flange 342f, having sealing members 342g and 342h, at another end. During operation, the coupling 340b of the collet 340 may engage the external groove 342e of the sliding sleeve 342 and thereby displace the sliding sleeve in the longitudinal direction. Since the coupling 340b of the collet 340 is resilient, the collet 340 may be disengaged or reengaged with the sliding sleeve 342. An annular valve member 344 defining an internal passage 344a, having a throat 344aa, includes a flange 344b at one end, having external splines 344c for engaging the internal splines 314f of the second tubular support member 314, an interior flange 344d having a first set of radial passages, 344da and 344db, and a counterbore 344e, a second set of radial passages, 344fa and 344fb, and a threaded portion 344g at another end.
An annular valve member 346 defining an internal passage 346a, having a throat 346aa, includes an end portion 346b that is received in the counterbore 344e of the annular valve member 344, a set of radial openings, 346ca and 346cb, and a flange 346d at another end. An annular valve member 348 defining an internal passage 348a for receiving the annular valve members 344 and 346 includes a flange 348b having a threaded counterbore 348c at one end for engaging the threaded portion 344g of the annular valve member, a counterbore 348d for mating with the flange 346d of the annular valve member, and a threaded annular recess 348e at another end.
The annular valve members 344, 346, and 348 define an annular passage 350 that fluidicly couples the radial passages 344fa, 344fb, 346ca, and 346cb. Furthermore, depending upon the position of the sliding sleeve 342, the fluid passages, 344da and 344db, may be fluidicly coupled to the passages 344fa, 344fb, 346ca, 346cb, and 350. In this manner, fluidic materials may bypass the portion of the passage 346a between the passages 344da, 344db, 346ca, and 346cb.
Furthermore, the sliding sleeve 342 and the valve members 344, 346, and 348 together define a sliding sleeve valve for controllably permitting fluidic materials to bypass the intermediate portion of the passage 346a between the passages, 344da, 344db, 346ca, and 346cb. During operation of the sliding sleeve valve, the flange 348b limits movement of the sliding sleeve 342 in the longitudinal direction.
In a preferred embodiment, the collet 340 includes a set of couplings 340b that engage the external groove 342e of the sliding sleeve 342. During operation, the collet couplings 340b latch over and onto the external groove 342e of the sliding sleeve 342. In a preferred embodiment, a longitudinal force of at least about 10,000 to 13,000 lbf is required to pull the couplings 340b off of, and out of engagement with, the external groove 342e of the sliding sleeve 342. In an exemplary embodiment, the application of a longitudinal force less than about 10,000 to 13,000 lbf indicates that the collet couplings 340b are latched onto the external shoulder of the sliding sleeve 342, and that the sliding sleeve 342 is in the up or the down position relative to the valve member 344. In a preferred embodiment, the collet 340 includes a conventional internal shoulder that transfers the weight of the first tubular support member 312 and expansion cone 318 onto the sliding sleeve 342. In a preferred embodiment, the collet 340 further includes a conventional set of internal lugs for engaging the splines 344c of the valve member 344.
An annular valve seat 352 defining a conical internal passage 352a for receiving a conventional float valve element 354 includes a threaded annular recess 352b for engaging the threaded portion 348e of the valve member 348, at one end, and an externally threaded portion 352c at another end. In an alternative embodiment, the float valve element 354 is omitted. An annular valve seat mounting element 356 defining an internal passage 356a for receiving the valve seat 352 and float valve 354 includes an internally threaded portion 356b for engaging the externally threaded portion 352c of the valve seat 352, an externally threaded portion 356c, an internal flange 356d, radial passages, 356ea and 356eb, and an end member 356f, having axial passages, 356fa and 356fb.
A shoe 358 defining an internal passage 358a for receiving the valve seat mounting element 356 includes a first threaded annular recess 358b, and a second threaded annular recess 358c for engaging the threaded portion 320d of the expansion cone launcher 320, at one end, a first threaded counterbore 358d for engaging the threaded portion 356c of the of the valve seat mounting element, and a second counterbore 358e for mating with the end member 356f of the mounting element. In a preferred embodiment, the shoe 358 is fabricated from a ceramic and/or a composite material in order to facilitate the subsequent removal of the shoe by drilling.
A seventh tubular support member 360 defining an internal passage 360a for receiving the sliding sleeve 342 and the valve members 344, 346, and 348 is positioned within the expansion cone launcher 320 that includes an internally threaded portion 360b at one end for engaging the externally threaded portion of the annular recess 358b of the shoe 358. In a preferred embodiment, during operation of the assembly, the end of the seventh tubular support member 360 limits the longitudinal movement of the expansion cone 318 in the direction of the shoe 358 by limiting the longitudinal movement of the sixth tubular support member 338. An annular centralizer 362 defining an internal passage 362 for supporting the valve member 348 is positioned within the seventh tubular support member 360 that includes axial passages 362b and 362c.
Referring to
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In an alternative embodiment of the method 400, the injection and placement of the top plug 1016 into the liner hanger assembly 300 in step 412 may omitted.
In an alternative embodiment of the method 400, in step 402, the assembly 300 is positioned at the bottom of the wellbore 1000.
In an alternative embodiment, as illustrated in
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In an alternative embodiment of the method 450, the injection and placement of the top plug 1016 into the liner hanger assembly 300 in step 464 may omitted.
In an alternative embodiment of the method 450, in step 452, the assembly 300 is positioned at the bottom of the wellbore 1000.
In an alternative embodiment of the method 450: (1) in step 452, the assembly 300 is positioned proximate a position below a preexisting section of the wellbore casing 1002, and (2) in step 458, the expansion cone launcher 320, and any expandable tubulars coupled to the threaded portion 320c of the expansion cone launcher, are radially expanded and plastically deformed until the shoe 358 of the assembly 300 is proximate the bottom of the wellbore 1000. In this manner, the radial expansion process using the assembly 300 provides a telescoping of the radially expanded tubulars into the wellbore 1000.
In several alternative embodiments, the assembly 300 may be operated to form a wellbore casing by including or excluding the float valve 354.
In several alternative embodiments, the float valve 354 may be operated in an auto-fill configuration in which tabs are positioned between the float valve 354 and the valve seat 352. In this manner, fluidic materials within the wellbore 1000 may flow into the assembly 300 from below thereby decreasing surge pressures during placement of the assembly 300 within the wellbore 1000. Furthermore, pumping fluidic materials through the assembly 300 at rate of about 6 to 8 bbl/min will displace the tabs from the valve seat 352 and thereby allow the float valve 354 to close.
In several alternative embodiments, prior to the placement of any of the plugs, 1010 and 1016, into the assembly 300, fluidic materials can be circulated through the assembly 300 and into the wellbore 1000.
In several alternative embodiments, once the bottom plug 1010 has been positioned into the assembly 300, fluidic materials can only be circulated through the assembly 300 and into the wellbore 1000 if the sliding sleeve 342 is in the down position.
In several alternative embodiments, once the sliding sleeve 342 is positioned in the down position, the passage 330a and rupture disc 336 are fluidicly isolated from pressurized fluids within the assembly 300.
In several alternative embodiments, once the top plug 1016 has been positioned into the assembly 300, no fluidic materials can be circulated through the assembly 300 and into the wellbore 1000.
In several alternative embodiments, the assembly 300 may be operated to form or repair a wellbore casing, a pipeline, or a structural support.
In a preferred embodiment, the design and operation of the liner hanger assemblies 10 and 300 are provided substantially as described and illustrated in the drawings of the present application.
Although this detailed description has shown and described illustrative embodiments of the invention, this description contemplates a wide range of modifications, changes, and substitutions. In some instances, one may employ some features of the present invention without a corresponding use of the other features. Accordingly, it is appropriate that readers should construe the appended claims broadly, and in a manner consistent with the scope of the invention.
This application is a National Phase of the International Application No. PCT/US01/28960 filed Sep. 17, 2001, which is based on U.S. application Ser. No. 60/233,638, filed on Sep. 18, 2000, the disclosure of which is incorporated herein by reference. This application is related to the following applications: (1) U.S. patent application Ser. No. 09/454,139, filed on Dec. 3, 1999, now U.S. Pat. No. 6,497,289 issued Dec. 24, 2002, (2) U.S. patent application Ser. No. 09/510,913, filed on Feb. 23, 2000, (3) U.S. patent application Ser. No. 09/502,350, filed on Feb. 10, 2000, now U.S. Pat. No. 6,823,937 issued Nov. 30, 2004, (4) U.S. patent application Ser. No. 09/440,338, filed on Nov. 15 1999, now U.S. Pat. No. 6,328,113 issued Dec. 11, 2001, (5) U.S. patent application Ser. No. 09/523,468, filed on Mar. 10, 2000, now U.S. Pat. No. 6,640,903 issued Nov. 14, 2003, (6) U.S. patent application Ser. No. 09/512,895, filed on Feb. 24, 2000, (7) U.S. patent application Ser. No. 09/511,941, filed on Feb. 24, 2000, now U.S. Pat. No. 6,575,240 issued Jun. 10, 2003, (8) U.S. patent application Ser. No. 09/588,946, filed on Jun. 7, 2000, now U.S. Pat. No. 6,557,640 issued May 6, 2003, (9) U.S. patent application Ser. No. 09/559,122, filed on Apr. 26, 2000, now U.S. Pat. No. 6,604,763 issued Aug. 12, 2003, (10) U.S. patent application Ser. No. 10/030,593, filed on Jan. 18, 2002, (11) U.S. patent application Ser. No. 10/111,982, based on U.S. provisional patent application Ser. No. 60/162,671, filed on Nov. 1, 1999, (12) U.S. provisional patent application Ser. No. 60/154,047, filed on Sep. 16, 1999, (13) U.S patent application Ser. No. 09/679,907, now U.S. Pat. No. 6,564,875 issued May 20, 2004 based on U.S. provisional patent application Ser. No. 60/159,082, filed on Oct. 12, 1999, (14) U.S. patent application Ser. No. 10/089,419, filed Sep. 19, 2002 based on U.S. provisional patent application Ser. No. 60/159,039, filed on Oct. 12, 1999, (15) U.S. patent application Ser. No. 09/679,906, filed Oct. 5, 2000 based on U.S. provisional patent application Ser. No. 60/159,033, filed on Oct. 12, 1999, (16) U.S. patent application Ser. No. 10/303,992, filed Nov. 22, 2002 based on U.S. provisional patent application Ser. No. 60/212,359, filed on Jun. 19, 2000, (17) U.S. provisional patent application Ser. No. 60/165,228, filed on Nov. 12, 1999, (18) U.S. patent application Ser. No. 10/311,412, filed on Aug. 11, 2003 based on U.S. provisional patent application Ser. No. 60/221,443, filed on Jul. 28, 2000, and (19) U.S. patent application Ser. No. 10/322,947, filed Dec. 18, 2002 based on U.S. provisional patent application Ser. No. 60/221,645, filed on Jul. 28, 2000. Applicants incorporate by reference the disclosures of these applications.
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| Number | Date | Country | |
|---|---|---|---|
| 20040045718 A1 | Mar 2004 | US |
| Number | Date | Country | |
|---|---|---|---|
| 60233638 | Sep 2000 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/US01/28960 | Sep 2001 | US |
| Child | 10351160 | US |
