Patent Grant
10941015
This section is intended to introduce the reader to various aspects of art that may be related to various aspects of the present disclosure, which are described below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements are to be read in this light, and not as admissions of prior art.
Flexible pipe is useful in various environments, including in the oil and gas industry. Flexible pipe may be durable and operational in harsh operating conditions and can accommodate high pressures and temperatures. As the flexible pipe is manufactured, the flexible pipe may be wound onto a reel or spool. The reel may therefore facilitate storage, transportation, and eventual deployment of the flexible pipe. After deployment, the reel may be returned to the manufacturing plant where additional flexible pipe is wound onto the reel. Reel production, reel shipment to and from a deployment site, and the use of reels to store flexible pipe can be very expensive or logistically challenging.
This summary is provided to introduce a selection of concepts that are further described below in the detailed description. This summary is not intended to identify key or essential features of the claimed subject matter, nor is it intended to be used as an aid in limiting the scope of the claimed subject matter.
In one example, a reel system that includes a drum that receives a coil of flexible pipe. A first flange that removably couples to a first side of the drum. A second flange that removably couples to a second side of the drum. The first flange and the second flange secure the coil of flexible pipe to the drum.
In another example, a system that includes a reel system. The reel system includes a first flange that removably couples to a first side of a drum. A second flange removably couples to a second side of the drum. The first and second flanges secure the coil of flexible pipe to the drum. A flange adjustment system that includes a first connector that couples to the first flange. A ratchet that couples to the first connector with a chain or strap. The ratchet reduces a length of the chain or the strap between the first connector and the ratchet to reduce a distance between the first flange and the second flange.
In another example, a reel system that includes a drum configured to receive a coil of a flexible pipe, a first flange, and a second flange. A drum modification system that includes a first shell that couples to the drum. The first shell increases a diameter of the drum.
Other aspects and advantages of the claimed subject matter will be apparent from the following description and the appended claims.
Certain embodiments commensurate in scope with the present disclosure are summarized below. These embodiments are not intended to limit the scope of the disclosure, but rather these embodiments are intended only to provide a brief summary of certain disclosed embodiments. Indeed, the present disclosure may encompass a variety of forms that may be similar to or different from the embodiments set forth below.
As used herein, the term “coupled” or “coupled to” may indicate establishing either a direct or indirect connection, and is not limited to either unless expressly referenced as such. The term “set” may refer to one or more items. Wherever possible, like or identical reference numerals are used in the figures to identify common or the same elements. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale for purposes of clarification.
Furthermore, when introducing elements of various embodiments of the present disclosure, the articles “a,” “an,” and “the” are intended to mean that there are one or more of the elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements. Additionally, it should be understood that references to “one embodiment” or “an embodiment” of the present disclosure are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, the phrase A “based on” B is intended to mean that A is at least partially based on B. Moreover, unless expressly stated otherwise, the term “or” is intended to be inclusive (e.g., logical OR) and not exclusive (e.g., logical XOR). In other words, the phrase A “or” B is intended to mean A, B, or both A and B.
As explained above, reels or spools increase the cost and complexity of manufacturing, shipping, and deploying flexible pipe. To reduce the number of reels used for shipping, storage, and deployment of flexible pipe, the disclosure describes various systems that enable storage and shipment of flexible pipe as a coil without a reel or spool. These systems include a reel system (e.g., modular reel system) that can be assembled and coupled to a coil of flexible pipe. For example, flexible pipe may be shipped as a coil to a deployment site. At the deployment site the reel system is assembled and coupled to the coil of flexible pipe enabling the flexible pipe to be controllably unwound and deployed. Also described in this disclosure is a modular flange system, a flange adjustment system, and a drum modification system.
The modular flange system enables formation of a flange out of multiple pieces. The modular flange system enables formation of a flange prior to coupling to a drum or assembly of the flange around the drum. For example, the modular flange system enables assembly of a flange around a drum in situations where an object (e.g., forklift) may obstruct attachment of a fully formed flange to the drum (e.g., obstruct the ability to slide a flange over a drum).
The flange adjustment system enables spacing adjustment between flanges coupled to a drum. In operation, the flange adjustment system may adjust spacing between flanges to accommodate different coil sizes of flexible pipe. The flange adjustment system may also block or reduce lateral shifting of flexible pipe on the drum during deployment.
The drum modification system enables adjustment of a drum's outermost diameter to accommodate different coil sizes. Coils of flexible pipe may vary in their innermost diameters depending on the size of the flexible pipe. For example, small diameter flexible pipe may be bound into tight bundles of coil (e.g., small innermost diameters) without kinking the flexible pipe. In contrast, large diameter flexible pipe may not be bound into tight coils without kinking. The drum modification system enables drum diameter adjustment by adding or removing shells that change the drum's outer diameter. In this way, the drum modification system enables a drum to be modified for different coils of flexible pipe.
Flexible pipe 10 is a tube that conveys or transfers any water, gas, oil, or any type of suitable fluid. The flexible pipe 10 may be made of any type of materials including plastics, metals, composites (e.g., fiber-reinforced composites), and/or other suitable materials. The flexible pipe 10 may include Bonded or Unbonded Flexible Pipe, Flexible Composite Pipe (FCP), Thermoplastic Composite Pipe (TCP) or Reinforced Thermoplastic Pipe (RTP). FCP or RTP pipe may itself be generally composed of several layers. In one or more embodiments, a flexible pipe may include a thermoplastic liner or internal pressure sheath having a reinforcement layer and a thermoplastic outer cover layer. In one or more embodiments, the thermoplastic may be high density polyethylene (HDPE). Thus, flexible pipe may include different layers that may be made of a variety of materials and may also provide corrosion resistance. For example, in one or more embodiments, pipe used to make up a coil of pipe may have a corrosion protection outer cover layer that is disposed over another layer of steel reinforcement. In this embodiment, helically wound steel strips may be placed over a liner made of thermoplastic pipe. Flexible pipe may be designed to handle a variety of pressures. Accordingly, flexible pipe may offer unique features and benefits versus steel/carbon steel pipe lines in the area of corrosion resistance, flexibility, installation speed and re-usability. Another type of flexible or spoolable pipe is coiled tubing or reeled tubing, which may be made of steel and have corrosion protection shield layer.
After arriving at the deployment site or a staging site, the coil 14 may be prepared for deployment using the reel system 12. The reel system 12 is a modular system that includes a drum 20 and flanges 22 that couple together to form a reel or spool from which the flexible pipe 10 may be deployed. The reel system 12 forms the reel or spool with the coil 14 by inserting the drum 20 into the aperture 24 formed by coil 14. The flanges 22 are then coupled (i.e., removably coupled) to the drum 20 to retain the coil 14 on the drum 20. For example, the flanges 22 may couple to the drum 20 with a friction fit and/or fasteners (e.g., bolts, pins).
The drum 20 and the flanges 22 couple together using an interlocking connection 25 (e.g., teeth). In some embodiments, the teeth of the interlocking connection 25 may have different cross-sections (e.g., square, rectangular, ovular, semi-circular). As illustrated, the drum 20 includes a cylinder 26. Coupled to an outer or exterior surface 28 of the cylinder 26 are bars 30. The bars 30 may extend along the entire length of the cylinder 26 or along a portion (e.g., 1-24 inches from the respective ends of the drum 20). The bars 30 may also be equally spaced and/or unequally spaced about the circumference of the cylinder 26. For example, some of the bars 30 may be equally spaced about a portion of the circumference while other bars 30 are unequally spaced about another portion of the cylinder 26. In operation, the bars 30 form a pattern that interlocks with corresponding teeth 32 (e.g., protrusions) on the flanges 22. The bars 30 may also provide supporting strength to the cylinder 26 enabling the drum 20 to support the weight of the coil 14.
In order for the flanges 22 to couple to the cylinder 26, the flanges 22 include teeth 32 that interface (e.g., interlock) with the bars 30 on the drum 20. It should be understood, that the pattern of the teeth 32 matches the pattern of the bars 30 on the drum to enable the flanges 22 to slide over the exterior surface 28 of cylinder 26. The teeth 32 on the flanges 22 extend radially inward from an interior cylinder 34. Coupled to the interior cylinder 34 are spokes or bars 36 that couple the interior cylinder 34 to an outer cylinder 38. The distance 40 between the interior cylinder 34 and the outer cylinder 38 enables the flanges 22 to contact and block lateral movement of the flexible pipe 10 in directions 42 and 44.
The pipe reel cradle 60 of
In order for the flanges 94 to couple to the cylinder 100, the flanges 94 include teeth 106 that interface (e.g., interlock) with the bars 104 on the drum 92. It should be understood, that the pattern of the teeth 106 matches the pattern of the bars 30 on the drum 92 to enable coupling. The teeth 106 on the flanges 94 extend radially inward and outward from an interior cylinder 108, which enables the teeth 106 to be inserted into the drum 92. Coupled to the interior cylinders 108 are spokes or bars 110 that couple the interior cylinder 108 and to an outer cylinder 112 to form the flanges 94.
The modular flange 130 is configured to couple to a drum (e.g., drums 20, 92). In order to couple to a drum, the modular flange 130 includes protrusions 150 (e.g., teeth) arranged in a pattern (e.g., repeating and/or non-repeating) that corresponds to a pattern of teeth on the drum. As illustrated, the protrusions 150 extend radially inward from a cylinder 152 of the central section 132. The modular flange 150 may enable assembly and coupling of a reel system to a coil without lifting the coil. Once assembled, the reel system and coil may be set in a cradel for deployment.
The modular flange 170 is configured to couple to a drum (e.g., drums 20, 92). In order to couple to a drum, the sections 172 and 174 include respective protrusions 180, 182 (e.g., teeth) arranged in a pattern (e.g., repeating and/or non-repeating) that corresponds to a pattern of teeth on the drum. As illustrated, the protrusions 180, 182 extend radially outward from respective semi-circular surfaces 184, 186. When the sections 172 and 174 couple together, the semi-circular surfaces 184, 186 form a circular profile that receives an end of a drum.
In order for the flange 200 to couple to a drum, the flange 200 may include teeth 206 that interface (e.g., interlock) with corresponding teeth on the drum. It should be understood, that the pattern of the teeth 206 matches the pattern of the bars 30 on the drum to enable the flange 200 to slide over the exterior surface of the drum. As illustrated, the teeth 206 extend radially inward from an interior cylinder 208. Coupled to the interior cylinder 208 are spokes or bars 210 that couple the interior cylinder 208 to an outer frame 212.
In operation, the ratchet 260 is adjusted (e.g., manually, automatically) to reduce the length of the chain 262 between the ratchet 260 and one of the flanges 252. As the length of the chain 262 decreases, the flanges 252 are pulled closer together in directions 264 and 266, which may secure the flexible pipe between the flanges 252 and block or reduce lateral movement of the flexible pipe in directions 268 and 270.
In operation, the ratchet 304 is adjusted (e.g., manually, automatically) to reduce the length of the chain 306 between the ratchet 304 and one of the flanges 294. As the length of the chain 306 decreases, the flange spacing system 292 stretches the spring 308. In response, the force of the spring 308 pulls the flanges 294 closer together in directions 310 and 312, which compresses the flanges 294 against the flexible pipe blocking or reducing lateral movement of the flexible pipe in directions 314 and 316.
In order to increase the size of the drum 422, one or more shells 424 are coupled to the drum 422. For example, a single shell (e.g., circular shell) may be placed over the drum 422 to increase the diameter. In another embodiment, two semi-circular shells 424 may be coupled to the drum 422. In still another embodiment, a different number of shells 424 may be used (e.g., 1, 2, 3, 4, 5, or more) with each shell 424 extending a fraction (e.g., 10, 20, 30, 40, 50 or more degrees) around the outer circumference of the drum 422. It should also be understood, that the shells 424 may not completely cover the exterior of the drum 422. For example, multiple shells 424 may couple to the drum 422 but with spaces or gaps between the shells 424. In this way, the shells 424 may increase the diameter of the drum 422 without significantly increasing weight.
The shells 424 define a length 429. In some embodiments, the shell length 429 may be less than a drum length 430 in order to accommodate flanges that slide over and couple to the drum 422. In some embodiments, the flanges may slide over and couple to the shells 424. In order to couple to the drum 422, the shells 424 define a plurality of apertures 432 that receive bolts or pins that extend through the shells 424 into apertures 434 in the drum 422. In some embodiments, additional layers (e.g., 1, 2, 3, 4, 5) of shells may couple to the shells 424 to further increase the diameter of the drum 422.
Technical effects of the invention include enabling shipment of and storage of coils of flexible pipe without a reel or spool. The reel system described above enables formation of a reel or spool at a job site or staging site that then receives a coil of flexible pipe enabling deployment of the flexible pipe.
As used herein, the terms “inner” and “outer”; “up” and “down”; “upper” and “lower”; “upward” and “downward”; “above” and “below”; “inward” and “outward”; and other like terms as used herein refer to relative positions to one another and are not intended to denote a particular direction or spatial orientation. The terms “couple,” “coupled,” “connect,” “connection,” “connected,” “in connection with,” and “connecting” refer to “in direct connection with” or “in connection with via one or more intermediate elements or members.”
The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings. Moreover, the order in which the elements of the methods described herein are illustrated and described may be re-arranged, and/or two or more elements may occur simultaneously. The embodiments were chosen and described in order to best explain the principals of the disclosure and its practical applications, to thereby enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated.
The techniques presented and claimed herein are referenced and applied to material objects and concrete examples of a practical nature that demonstrably improve the present technical field and, as such, are not abstract, intangible or purely theoretical. Further, if any claims appended to the end of this specification contain one or more elements designated as “means for [perform]ing [a function] . . . ” or “step for [perform]ing [a function] . . . ”, it is intended that such elements are to be interpreted under 35 U.S.C. 112(f). However, for any claims containing elements designated in any other manner, it is intended that such elements are not to be interpreted under 35 U.S.C. 112(f).
| Number | Name | Date | Kind |
|---|---|---|---|
| 20150122929 | Garton | May 2015 | A1 |
| Number | Date | Country |
|---|---|---|
| WO-2013157163 | Oct 2013 | WO |
| Entry |
|---|
| Machine Translation of WO 2013/157163 A1, Oct. 24, 2013. (Year: 2013). |
