US20100257913A1 - Resilient Anchor - Google Patents

Resilient Anchor Download PDF

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Publication number
US20100257913A1
US20100257913A1 US12/422,603 US42260309A US2010257913A1 US 20100257913 A1 US20100257913 A1 US 20100257913A1 US 42260309 A US42260309 A US 42260309A US 2010257913 A1 US2010257913 A1 US 2010257913A1
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US
United States
Prior art keywords
tubular member
resilient member
expandable tubular
anchor
resilient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/422,603
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English (en)
Inventor
Bruce H. Storm, Jr.
Harsh Chowdhary
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enventure Global Technology Inc
Original Assignee
Enventure Global Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enventure Global Technology Inc filed Critical Enventure Global Technology Inc
Priority to US12/422,603 priority Critical patent/US20100257913A1/en
Assigned to ENVENTURE GLOBAL TECHNOLOGY, LLC reassignment ENVENTURE GLOBAL TECHNOLOGY, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STORM, BRUCE H., JR., CHOWDHARY, HARSH
Priority to PCT/US2010/030723 priority patent/WO2010120677A2/fr
Publication of US20100257913A1 publication Critical patent/US20100257913A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Definitions

  • expandable tubing is often used for casing, liners and the like.
  • a tubular member is installed in a wellbore and subsequently expanded by displacing an expansion cone through the tubular member.
  • the expansion cone may be pushed or pulled using mechanical means, such as by a support tubular coupled thereto, or driven by hydraulic pressure.
  • the expansion cone imparts radial force to the inner surface of the tubular member.
  • the tubular member plastically deforms, thereby permanently increasing both its inner and outer diameters.
  • the tubular member expands radially.
  • Expandable tubulars may also be used to repair, seal, or remediate existing casing that has been perforated, parted, corroded, or otherwise damaged since installation.
  • the present disclosure relates to methods and apparatus for radially expanding and plastically deforming an expandable tubular member using an expansion device, an actuator coupled to the expansion device, and an anchor coupled to the actuator.
  • the anchor includes a resilient member that is selectively deformable between a first position wherein the resilient member does not engage the expandable tubular member and a second position wherein the resilient member engages the expandable tubular member so as to releasably couple the anchor to the expandable tubular member.
  • FIG. 1 is a fragmentary cross-sectional illustration of an apparatus for installing an expandable tubular member within a preexisting structure.
  • FIG. 2 is a fragmentary cross-sectional illustration of the apparatus of FIG. 1 after displacing the expansion device within the expandable tubular member.
  • FIG. 3 is a fragmentary cross-sectional illustration of the apparatus of FIG. 2 after displacing the actuator and anchor relative to the expansion device and the expandable tubular member.
  • FIG. 4 is a fragmentary cross-sectional illustration of the apparatus of FIG. 3 after displacing the expansion device within the expandable tubular member.
  • FIG. 5A-5B are partial schematic illustrations of an anchor activated by axial compression in accordance with one embodiment.
  • FIG. 6A-6B are partial schematic illustrations of an anchor activated by radial expansion in accordance with another embodiment.
  • FIG. 7 is a cross-section of an anchor in accordance with one embodiment.
  • FIGS. 8A-8C are detailed isometric views of a resilient member for use with the anchor shown in FIG. 7 in accordance with one embodiment.
  • FIG. 9 is a fragmentary cross-sectional illustration of an apparatus for anchoring a workstring to a tubular member.
  • FIG. 10 is a fragmentary cross-sectional illustration of the apparatus of FIG. 9 with the workstring anchored to the tubular member.
  • the present disclosure relates to apparatus and methods for anchoring a workstring within a tubular member such that a process can be performed on the tubular member.
  • the anchored workstring is used to move the tubular member within a wellbore.
  • the anchored workstring includes an expansion apparatus operable to radially expand the tubular member within a wellbore.
  • an embodiment of an expansion apparatus 10 for radially expanding and plastically deforming a tubular member 12 includes a tubular support member 14 that is coupled to an end of an anchor 16 for controllably engaging the tubular member via resilient member 26 .
  • Another end of the anchor 16 is coupled to a tubular support member 18 that is coupled to an end of an actuator 20 .
  • Another end of the actuator 20 is coupled to a tubular support member 22 that is coupled to an end of an expansion device 24 for radially expanding and plastically deforming the tubular member 12 .
  • the anchor 16 , the tubular support member 18 , the actuator 20 , and the tubular support member 22 are positioned within the tubular member 12 .
  • the expansion apparatus 10 is positioned within a preexisting structure 30 such as, for example, a wellbore that traverses a subterranean formation 32 .
  • anchor 16 is activated.
  • the activation of anchor 16 causes resilient member 26 to deform and engage tubular member 12 so as to releasably couple anchor 16 to tubular member 12 .
  • the axial position of anchor 16 is fixed relative to tubular member 12 , as shown in FIG. 2 .
  • the activation of anchor 16 is further detailed below in reference to FIGS. 5A-5B and 6 A- 6 B.
  • actuator 20 can be activated to axially displace the expansion device 24 relative to tubular member 12 .
  • the axial displacement of expansion device 24 radially expands and plastically deforms a portion of the tubular member 12 .
  • the anchor 16 is then deactivated, which disengages resilient member 26 from the tubular member 12 .
  • the tubular support member 14 , the anchor 16 , the tubular support member 18 , and the actuator 20 can be displaced axially relative to the expansion device 24 .
  • the axial displacement of anchor 16 and actuator 20 may be effectuated by pulling support member 14 upward or through a reversal of the activation of actuator 20 .
  • the anchor 16 is again releasably coupled to tubular member 12 by deforming resilient member 26 into engagement with tubular member 12 .
  • Actuator 20 is activated to further axially displace expansion device 24 relative to tubular member 12 .
  • expansion device 24 is displaced by the actuator 20
  • another portion of tubular member 12 is radially expanded and plastically deformed.
  • the operations of FIGS. 3 and 4 can then be repeated until the desired length of the tubular member 12 is radially expanded and plastically deformed.
  • the process of anchoring and releasing may be repeated many times to allow repeated expansion steps.
  • the strains imposed on the resilient members may be limited to avoid any permanent deformation of resilient member 26 and allow virtually unlimited actuation of the anchor 26 .
  • the actuator 20 may be configured for a stroke length of 3 feet and 3000 feet of tubular member 12 may be expanded.
  • the anchor 16 could be actuated to anchor the support member 14 , the actuator 20 then stroked 3 feet to expand a portion of tubular member 12 with expansion device 24 , followed by release of the anchor 16 .
  • Pulling up on the support member 14 resets the actuator 20 and allows a repeat of the anchoring and expansion in the 3 foot intervals until the tubular member 12 is expanded.
  • expansion apparatus 10 is only one embodiment of a system utilizing an anchor, actuator, and expansion device and other such systems may be contemplated or are known in the art.
  • the expansion device may be a solid mandrel having a fixed outer diameter, an adjustable or collapsible mandrel with a variable outer diameter, a roller-type expansion device, or any other device used to expand a tubular.
  • the expansion device may have an initial position within the tubular and/or be configured for downward expansion.
  • Expansion apparatus 10 may also utilize any actuator that provides sufficient force to axially displace the expansion device through the expandable tubular.
  • the actuator may be driven by hydraulic pressure, mechanical forces, electrical power, or any other suitable power source.
  • FIGS. 5A and 5B schematically illustrate one embodiment of an anchor 112 comprising a resilient member 126 that is deformed by the application of an axial force on the resilient member.
  • Resilient member 126 is a substantially cylindrical body disposed about a support member 134 .
  • Resilient member 126 is axially constrained on one end by flange 128 .
  • Piston 130 is disposed adjacent to the other end of resilient member 126 .
  • the axial compression of resilient member 126 increases the outside diameter of the resilient member according to the material properties, such as Poisson's ratio, of the resilient material.
  • a urethane formulated for a downhole environment may have a Poisson's ratio of about 0.50.
  • the outside of the resilient member 126 comes into contact with, and develops a normal force on, the inner diameter of the tubular member 132 .
  • Further axial compression of the resilient member 126 adds to the normal force, which provides the anchoring force for the anchor 112 .
  • the anchoring force is approximately the product of the normal force applied to the inner diameter of the tubular member 132 and the coefficient of friction between the tubular member 132 and the resilient member 126 .
  • resilient member 126 may exert a force on tubular member 132 that is sufficient to cause deformation of the tubular member 132 . This localized deformation of tubular member 132 may further increase the anchoring force generated by resilient member 126 as the resilient member would have to be sheared or compressed in order to exit the area that has been deformed.
  • FIGS. 6A and 6B schematically illustrate another embodiment of an anchor 212 comprising a resilient member 226 that is deformed by radially expanding the resilient member using a tapered mandrel 228 .
  • Resilient member 226 is a substantially cylindrical body disposed about a support member 230 .
  • Tapered mandrel 228 is also disposed about support member 230 and is axially moveable relative thereto.
  • Resilient member 226 is axially constrained on one end by flange 232 .
  • anchor 212 is activated, tapered mandrel 228 is moved toward flange 232 .
  • the axial movement of tapered mandrel 228 forces resilient member 226 to radially expand outward over the tapered mandrel and into contact with tubular member 234 .
  • the outside of the resilient member 226 comes into contact with, and develops a normal force on the inner diameter of the tubular member 234 .
  • Further radial expansion of the resilient member 226 adds to the normal force, which provides the anchoring force for the anchor 212 .
  • the anchoring force is approximately the product of the normal force applied to the inner diameter of the tubular member 234 and the coefficient of friction between the tubular member 234 and the resilient member 226 .
  • resilient member 226 may exert a force on tubular member 234 that is sufficient to cause deformation of the tubular member. This localized deformation of tubular member 234 may further increase the anchoring force generated by resilient member 226 as the resilient member would have to be sheared or compressed in order to exit the area that has been deformed.
  • FIG. 7 an anchor in accordance with one embodiment is shown.
  • the anchor uses resilient members 702 a and 702 b disposed around an anchor body 701 to selectively engage the inside of tubular member 12 to anchor support member 14 with respect to tubular member 12 .
  • Engagement of the resilient members 702 a and 702 b is controlled by axially compressing the resilient members 702 a and 702 b , which increases the outside diameter of the resilient members 702 a and 702 b according to the material properties of the particular material, such as Modulus of Elasticity, and Poisson's ratio.
  • the outside of the resilient members 702 a and 702 b come into contact with the inside of the tubular member 12 , which develops a normal force on the inner diameter of the tubular member 12 .
  • Further axial stress on the resilient members 702 a and 702 b adds to the normal force, which provides the anchoring force for the anchor.
  • the anchoring force is approximately the product of the normal force applied to the inner diameter of the tubular member 12 and the coefficient of friction between the tubular member 12 and the resilient members 702 a and 702 b.
  • the anchor body 701 includes a connection, such as a threaded connection, to the support member 14 .
  • the opposing end of the anchor body 701 is connected to other components of the expansion apparatus, such as an actuator (not shown).
  • the anchor includes two resilient members 702 a and 702 b that are generally cylindrical in shape and disposed on the anchor body 701 . In the relaxed or undocked state, as shown in FIG. 7 , the outside diameter of the resilient members 702 a and 702 b is less than the inside diameter of the tubular member 12 to allow movement of the expansion apparatus.
  • the resilient members 702 a and 702 b are axially trapped by a top compression flange 720 and a bottom compression flange 721 , respectively.
  • the resilient members 702 a and 702 b are separated by a center wedge 715 .
  • the surfaces of center wedge 715 and compression flanges 720 and 721 that contact the ends of resilient members 702 a and 702 b are curved, which helps to force the resilient members radially outward as they are axially compressed by the compression flanges.
  • the resilient members 702 a and 702 b may further include reinforcement members, such as anti-extrusion inserts 703 a - d to reduce or eliminate axial extrusion.
  • the anti-extrusion inserts 703 a - d are formed from less flexible material, such as Teflon® or Nylon®, and may be separate or integrally bonded with the resilient members 702 a and 702 b.
  • the top compression flange 720 and the bottom compression flange 721 act as pressure-driven pistons to axially compress and radially expand the resilient members 702 a and 702 b .
  • the respective piston areas are defined by the inside diameters of an upper retainer 701 and a lower retainer 711 and the outside diameter of a mandrel portion 705 of the anchor body 701 .
  • O-rings or any other sealing arrangement may be used to seal between the respective inside and outside diameters of the top compression flange 720 , the bottom compression flange 721 , the mandrel portion 705 of the anchor body 701 , the upper retainer 701 , and the lower retainer 711 .
  • FIG. 7 a pressure actuated embodiment is shown in FIG. 7 , those having ordinary skill in the art will appreciate that the anchor could be actuated using other means, such as an electric motor with a linear actuator.
  • the present disclosure is not limited to any number of resilient members. In some embodiments, a single resilient member may provide sufficient anchoring force. Those having ordinary skill in the art will appreciate that the amount of anchoring force needed will depend on many factors, such as the material strength, diameter, and thickness of the tubular member being expanded.
  • FIGS. 8A-8C illustrate a resilient member 802 that may be used with the anchor shown in FIG. 7 .
  • the resilient member 802 is generally cylindrical, but includes azimuthally arranged cuts or grooves 801 on the exterior to relieve hoop stress in the resilient member 802 . Grooves 801 also allow fluid bypass, which may be desirable for pressure equalization or fluid transfer across resilient member 802 .
  • Extrusion inserts 803 are at opposing ends of each section of the resilient member 802 , Because of the grooves 801 , the extrusion inserts 803 will experience less strain during actuation of the resilient member 802 , which prevents or minimizes the risk of plastic deformation of the extrusion inserts 803 .
  • Extrusion inserts 803 are one example of a reinforcement member that may be used to improve the performance of resilient member 802 . Other reinforcement members may include wire mesh, fibers, balls, and/or other materials combined with the resilient material.
  • workstring 310 comprises anchor device 316 that is coupled to support member 314 .
  • Workstring 310 is disposed within tubular member 312 that may be at the surface or may be disposed within wellbore 330 .
  • Anchor device 316 includes resilient member 326 that is operable to engage tubular member 312 .
  • Workstring 310 is disposed within tubular member 312 with resilient member 326 in a first position, as shown in FIG. 9 , where the resilient member does not contact the tubular member.
  • resilient member 326 is selectively deformed to a second position, as shown in FIG. 10 , by the activation of anchor device 316 .
  • anchor device 316 couples workstring 310 to tubular member 316 .
  • Workstring 310 can then be used to move tubular member 312 within wellbore 330 .
  • workstring 310 may be installed within tubular member 312 at the surface and then be used to lower the tubular member into wellbore 330 , such as during casing running or liner drilling operations.
  • Workstring 310 may also be installed within a tubular member 312 that is already in wellbore 330 to enable the tubular member to be removed from the wellbore, such as during fishing operations.
  • workstring 310 may also be used to engage tubular member 312 to perform a radial expansion operation.
  • anchor device 316 may be operable to transmit torque from workstring 310 to tubular member 316 , so that the tubular member can be rotated.
  • Anchors utilizing resilient members as disclosed herein provide an anchor that is less sensitive than other anchoring systems to variations in the inside diameter of the tubular member being expanded. Eccentricity and surface flaws are forgiven by the resilient members pressed against the inside of the tubular member because the resilient members conform to whatever surface they are pressed against. Additionally, the anchors can be configured to anchor within a range of internal diameters to take advantage of the range of radial strain tolerated by the resilient members. Unlike slips or pawls used in other anchoring systems, anchors utilizing resilient members do not gouge or otherwise damage the inside surface of the tubular member, which avoids creating stress concentrations in the tubular member when that portion is later expanded. Additionally, anchors utilizing resilient members are able to be constructed from a relatively few components, thus providing a less complicated and less expensive anchoring device.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US12/422,603 2009-04-13 2009-04-13 Resilient Anchor Abandoned US20100257913A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/422,603 US20100257913A1 (en) 2009-04-13 2009-04-13 Resilient Anchor
PCT/US2010/030723 WO2010120677A2 (fr) 2009-04-13 2010-04-12 Dispositif d'ancrage élastique

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US12/422,603 US20100257913A1 (en) 2009-04-13 2009-04-13 Resilient Anchor

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WO (1) WO2010120677A2 (fr)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN103233696A (zh) * 2013-04-28 2013-08-07 成都科盛石油科技有限公司 用于修复井壁的两段式修复机构
WO2013126065A1 (fr) * 2012-02-24 2013-08-29 Halliburton Energy Servcies, Inc. Ensemble d'ancrage
WO2016091970A1 (fr) * 2014-12-12 2016-06-16 Shell Internationale Research Maatschappij B.V. Extension d'un élément tubulaire dans un puits de forage
WO2016091971A1 (fr) * 2014-12-12 2016-06-16 Shell Internationale Research Maatschappij B.V. Système et procédé d'ancrage destinés à être utilisés dans un puits de forage
US9638357B1 (en) 2015-06-24 2017-05-02 Omax Corporation Mechanical processing of high aspect ratio metallic tubing and related technology
CN109707333A (zh) * 2018-11-15 2019-05-03 中国石油天然气股份有限公司 一种油井套管自膨胀补贴方法
WO2021086317A1 (fr) * 2019-10-29 2021-05-06 Halliburton Energy Services, Inc. Ancrage de puits de forage métallique extensible
US11904494B2 (en) 2020-03-30 2024-02-20 Hypertherm, Inc. Cylinder for a liquid jet pump with multi-functional interfacing longitudinal ends
US12064893B2 (en) 2020-03-24 2024-08-20 Hypertherm, Inc. High-pressure seal for a liquid jet cutting system

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013126065A1 (fr) * 2012-02-24 2013-08-29 Halliburton Energy Servcies, Inc. Ensemble d'ancrage
US8714242B2 (en) 2012-02-24 2014-05-06 Halliburton Energy Services, Inc. Anchor assembly
CN103233696A (zh) * 2013-04-28 2013-08-07 成都科盛石油科技有限公司 用于修复井壁的两段式修复机构
US10435971B2 (en) 2014-12-12 2019-10-08 Shell Oil Company Anchor system and method for use in a wellbore
WO2016091970A1 (fr) * 2014-12-12 2016-06-16 Shell Internationale Research Maatschappij B.V. Extension d'un élément tubulaire dans un puits de forage
WO2016091971A1 (fr) * 2014-12-12 2016-06-16 Shell Internationale Research Maatschappij B.V. Système et procédé d'ancrage destinés à être utilisés dans un puits de forage
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