WO2017075236A1 - Élément d'étanchéité de garniture séquentiel et mécanisme de libération de coin de retenue - Google Patents

Élément d'étanchéité de garniture séquentiel et mécanisme de libération de coin de retenue Download PDF

Info

Publication number
WO2017075236A1
WO2017075236A1 PCT/US2016/059148 US2016059148W WO2017075236A1 WO 2017075236 A1 WO2017075236 A1 WO 2017075236A1 US 2016059148 W US2016059148 W US 2016059148W WO 2017075236 A1 WO2017075236 A1 WO 2017075236A1
Authority
WO
WIPO (PCT)
Prior art keywords
slip
mandrel
movement
retrievable packer
sealing element
Prior art date
Application number
PCT/US2016/059148
Other languages
English (en)
Inventor
Larry J. URBAN
Gary L. Anderson
Original Assignee
Baker Hughes Incorporated
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 Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Priority to GB1808746.0A priority Critical patent/GB2560467A/en
Publication of WO2017075236A1 publication Critical patent/WO2017075236A1/fr
Priority to NO20180692A priority patent/NO20180692A1/en

Links

Classifications

    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/128—Packers; Plugs with a member expanded radially by axial pressure
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1293—Packers; Plugs with mechanical slips for hooking into the casing with means for anchoring against downward and upward movement

Definitions

  • the field of the invention is compression set packers and more particularly a release mechanism that sequentially releases the packer seal and then the slips before packer retrieval.
  • Retrievable compression set packers typically have a pair of opposed slips straddling a sealing element.
  • a setting piston creates relative movement that sets the packer. The relative movement pushes an upper slip out on a ramp to anchor the mandrel. Further pushing compresses the sealing element to contact the surrounding tubular followed by pushing the lower slips outward into engagement with the surrounding tubular.
  • a locking mechanism locks in the relative movement that set the packer slips and seal.
  • a retrievable compression set packer is sequentially released. First the sealing element is allowed to relax. Then the upper slip has wedging action that forces it against a surrounding tubular relaxed. After that the upper slips are pulled up to retract them fully allowing the packer to come out. These sequential actions are done with a mandrel movement in one direction.
  • the sealing element is released with undermining a collet by aligning collet heads with a recess on the mandrel.
  • the slip force release happens with mandrel movement forcing a ring into a wedge such that circumferential force on slip segments is reduced or eliminated when the wedge is pushed out of its conforming slot allowing for circumferential flexibility of the slip seat.
  • the mandrel picks up a slip ring that retracts the slip segments on the seat and the packer is removed.
  • FIG. la is a section view of the retrievable packer when running in
  • FIG. lb is the view of FIG. la with the sealing element and upper slips released for retrieval;
  • FIG. 2a is an enlarged view of a part of FIG. la;
  • FIG. 2b is an enlarged view of a part of FIG. lb;
  • FIG. 3a is an exterior plan view of a part of the packer shown in
  • FIG. la
  • FIG. 3b is an exterior plan view of a part of the packer shown in FIG. lb.
  • FIG. la shows a mandrel 10 having a passage 12 therethrough.
  • An outer assembly 14 starts with a slip ring 16 at the downhole end followed by lower slips 18 that ride on a ramped slip seat 20.
  • Adjacent the slip seat 20 is an anti-extrusion ring 22 and a seal assembly generally referred to as 24.
  • Another anti-extrusion ring 26 is held in place with telescoping sleeve 28 secured against telescoping to a shorter axial dimension by collet 40 extending from a collet ring 30.
  • Upper sleeve 32 retains upper slip seat 34 that interacts with the upper slips 36 that are interconnected by slip ring 38.
  • Collet ring 30 has a series of collet heads 40 secured to sleeve 28 with meshing tooth profiles 42. Heads 40 are supported off mandrel 10 for running in. Recess 44 is offset from heads 40 when running in but when the release process is started and mandrel 10 is picked up the first thing that happens is that recess 44 aligns with heads 40.
  • the retained rubber pressure in the seal 24 can push sleeve 28 to the point that surface 46 hits surface 48 on collet ring 30.
  • the seal assembly can then relax and stretch to the position shown in FIG. lb where a part of the assembly with extrusion ring 26 is pulled away from the balance of the seal assembly 24 to allow reduction of diameter that it will take to allow removal of the packer.
  • the configuration of the seal assembly and slips can be altered as long as the slip design is amenable to a release of most if not all the force holding the slips to the surrounding tubular when the mandrel is moved.
  • the preferred design allows mandrel movement to reduce holding force before there is axial slip movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne une garniture d'ensemble de compression récupérable, qui est libérée séquentiellement. D'abord, l'élément d'étanchéité peut se relâcher. Ensuite, le coin de retenue supérieur a une action de calage qui le force contre une tubulure environnante relâchée. Après, les coins de retenue supérieurs sont remontés pour les rétracter entièrement, autorisant la garniture à sortir. Ces actions séquentielles sont réalisées avec un déplacement de mandrin dans une direction. L'élément d'étanchéité est libéré par sapement d'un collet par alignement de têtes de collet avec un évidement sur le mandrin. La libération de force de coin de retenue se produit avec un déplacement de mandrin forçant une bague dans une cale de telle sorte qu'une force circonférentielle sur des segments de coin de retenue est réduite ou éliminée lorsque la cale est poussée hors de sa fente conforme, permettant une flexibilité circonférentielle du siège de coin de retenue. Le mandrin collecte ensuite une bague de coin de retenue qui rétracte les segments de coin de retenu sur le siège de coin de retenue, et la garniture est retirée.
PCT/US2016/059148 2015-10-30 2016-10-27 Élément d'étanchéité de garniture séquentiel et mécanisme de libération de coin de retenue WO2017075236A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1808746.0A GB2560467A (en) 2015-10-30 2016-10-27 Sequential packer sealing element and slip release mechanism
NO20180692A NO20180692A1 (en) 2015-10-30 2018-05-16 Sequential packer sealing element and slip release mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/928,597 2015-10-30
US14/928,597 US20170122063A1 (en) 2015-10-30 2015-10-30 Sequential Packer Sealing Element and Slip Release Mechanism

Publications (1)

Publication Number Publication Date
WO2017075236A1 true WO2017075236A1 (fr) 2017-05-04

Family

ID=58631811

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2016/059148 WO2017075236A1 (fr) 2015-10-30 2016-10-27 Élément d'étanchéité de garniture séquentiel et mécanisme de libération de coin de retenue

Country Status (4)

Country Link
US (1) US20170122063A1 (fr)
GB (1) GB2560467A (fr)
NO (1) NO20180692A1 (fr)
WO (1) WO2017075236A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020028100A1 (fr) * 2018-08-03 2020-02-06 Weatherford Technology Holdings, Llc Bouchon de fracturation à asservissement pour l'isolation et suppression de la pression dans un tubage de puits

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060131011A1 (en) * 2004-12-22 2006-06-22 Lynde Gerald D Release mechanism for downhole tool
US20080314583A1 (en) * 2005-07-04 2008-12-25 Jian Xu Retrievable Bridge Plug
US20100155052A1 (en) * 2003-11-07 2010-06-24 Peak Well Services Pty Ltd Downhole Tool and Running Tool System for Retrievably Setting a Downhole Tool at Locations Within a Well Bore
WO2012140201A2 (fr) * 2011-04-15 2012-10-18 Extreme Invent As Outil de bouchon provisoire
US20130048273A1 (en) * 2011-08-31 2013-02-28 Baker Hughes Incorporated Resettable Lock for a Subterranean Tool

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100155052A1 (en) * 2003-11-07 2010-06-24 Peak Well Services Pty Ltd Downhole Tool and Running Tool System for Retrievably Setting a Downhole Tool at Locations Within a Well Bore
US20060131011A1 (en) * 2004-12-22 2006-06-22 Lynde Gerald D Release mechanism for downhole tool
US20080314583A1 (en) * 2005-07-04 2008-12-25 Jian Xu Retrievable Bridge Plug
WO2012140201A2 (fr) * 2011-04-15 2012-10-18 Extreme Invent As Outil de bouchon provisoire
US20130048273A1 (en) * 2011-08-31 2013-02-28 Baker Hughes Incorporated Resettable Lock for a Subterranean Tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020028100A1 (fr) * 2018-08-03 2020-02-06 Weatherford Technology Holdings, Llc Bouchon de fracturation à asservissement pour l'isolation et suppression de la pression dans un tubage de puits
US10794132B2 (en) 2018-08-03 2020-10-06 Weatherford Technology Holdings, Llc Interlocking fracture plug for pressure isolation and removal in tubing of well

Also Published As

Publication number Publication date
NO20180692A1 (en) 2018-05-16
US20170122063A1 (en) 2017-05-04
GB201808746D0 (en) 2018-07-11
GB2560467A (en) 2018-09-12

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