WO2015131004A1 - Bras de préhension rotatifs - Google Patents

Bras de préhension rotatifs Download PDF

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Publication number
WO2015131004A1
WO2015131004A1 PCT/US2015/017906 US2015017906W WO2015131004A1 WO 2015131004 A1 WO2015131004 A1 WO 2015131004A1 US 2015017906 W US2015017906 W US 2015017906W WO 2015131004 A1 WO2015131004 A1 WO 2015131004A1
Authority
WO
WIPO (PCT)
Prior art keywords
arms
collar
packer
central body
central
Prior art date
Application number
PCT/US2015/017906
Other languages
English (en)
Inventor
Matthew Mccarthy
Derek Ingraham
Original Assignee
Schlumberger Canada Limited
Services Petroliers Schlumberger
Schlumberger Holdings Limited
Schlumberger Technology B.V.
Prad Research And Development Limited
Schlumberger Technology Corporation
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 Schlumberger Canada Limited, Services Petroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Technology B.V., Prad Research And Development Limited, Schlumberger Technology Corporation filed Critical Schlumberger Canada Limited
Priority to US15/121,939 priority Critical patent/US20170175483A1/en
Publication of WO2015131004A1 publication Critical patent/WO2015131004A1/fr

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
    • 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
    • E21B33/1291—Packers; Plugs with mechanical slips for hooking into the casing anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
    • 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • 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
    • 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
    • E21B33/1294—Packers; Plugs with mechanical slips for hooking into the casing characterised by a valve, e.g. a by-pass valve
    • 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
    • E21B43/14—Obtaining from a multiple-zone well

Definitions

  • the present disclosure relates to methods and apparatus for isolating zones in a subterranean formation in general and in particular to methods and apparatus for engaging a sealing element within a well bore.
  • sealing elements may be components of a production packer, an open hole production packer, seal adapter, pressure chamber seal adapter (with charged high pressure chamber on board), a liner hanger packer, a full bore liner top packer, a straddle type stimulation tool, a hybrid type stimulation tools (hydroelement and mechanical packer), a hydroelement made from swellable rubber compounds, an open hole seal or a cased hole seal all of which may be mechanically, hydraulically, hydrostatically or pressure chamber operated.
  • Production packers are designed to be located between the casing or liner and a working or production tubing in a well.
  • one difficulty that exists is that the packer may be difficult to remove or retrieve after they are set.
  • One of the reasons for this is that such packers are designed to isolate one zone from another and will therefore in practice include a pressure differential across the packer. Such pressure differential is known to impair the ability of the packer to be removed.
  • an apparatus for engaging a body within a bore comprises a central body extending between first and second ends and a cone secured to the central body having an inclined surface oriented towards the second end.
  • the apparatus further comprises a collar translatable along the central body, the collar being located between the cone and the second end of the central body and a plurality of arms, each arm pivotally located relative to the collar around a periphery of the central body, arms extending between first and second ends and having gripping surfaces around an exterior surface thereof proximate to the first ends.
  • the collar may include a plurality of longitudinal grooves around an exterior surface thereof each sized to receive an arm therein.
  • the apparatus may further comprise a cage surrounding the collar and the arms adapted to retain the arms within the grooves.
  • the cage may extend between first and second ends and includes a plurality of apertures each at a location corresponding to the arms wherein each arm pivots about a portion of the cage between the aperture and the first end of the cage.
  • the arms and the collar may form a void under each arm within each longitudinal groove.
  • the cage may include bore therethrough in fluidic communication with the void between the arms and the collar.
  • the collar may further include a plurality of longitudinally extending collet arms radially outwardly biased to engage upon a well bore and cause drag therebetween.
  • the central body may include a profiled groove therein adapted receive a pin extending from the collar wherein the slot includes alternating long and short parallel slots extending longitudinally therealong and angled surface to advance the pin to successive long and short parallel slots as the central body is reciprocated relative to the collar so as to position the collar at to permit the arms to extend from the central body when the pin is in the long slots and limit extension of the arms when pin is in the short slots.
  • a packer comprising a central tubular member having a central bore therethrough extending between first and second ends and a sealing element extending around the central tubular member adapted to be longitudinally compressed so as to axially expand the sealing element into contact with a surface of a well bore.
  • the packer further comprises a cone secured to the tubular member having an inclined surface oriented towards the second end, a collar translatable along the tubular body between the cone and the second end of the central body and a plurality of arms, each arm pivotally located relative to the collar around a periphery of the tubular member, arms extending between first and second ends and having gripping surfaces around an exterior surface thereof proximate to the first ends.
  • the collar may include a plurality of longitudinal grooves around an exterior surface thereof each sized to receive an arm therein.
  • the packer may further comprise a cage surrounding the collar and the arms adapted to retain the arms within the grooves.
  • the cage may extend between first and second ends and includes a plurality of apertures each at a location corresponding to the arms wherein each arm pivots about a portion of the cage between the aperture and the first end of the cage.
  • the arms and the collar may form a void under each arm within each longitudinal groove.
  • the cage may include bore therethrough in fluidic communication with the void between the arms and the collar.
  • the collar may further include a plurality of longitudinally extending collet arms radially outwardly biased to engage upon a well bore and cause drag therebetween.
  • the central body may include a profiled groove therein adapted receive a pin extending from the collar wherein the slot includes alternating long and short parallel slots extending longitudinally therealong and angled surface to advance the pin to successive long and short parallel slots as the central body is reciprocated relative to the collar so as to position the collar at to permit the arms to extend from the central body when the pin is in the long slots and limit extension of the arms when pin is in the short slots.
  • the sealing elements may comprise a plurality of tubular elements disposed annularly around the central member.
  • the tubular elements may include annular springs encased therein.
  • the packer may further include top and bottom extrusion blocks disposed annularly around the tubular member to opposed sides of the sealing element.
  • the bottom extrusion block may be at a fixed location relative to the cone wherein the top extrusion block is longitudinally slidable along the tubular member so as to compress the sealing elements therebetween.
  • methods for engaging a body within a bore comprising locating the body having a central body central member and a cone located around the cone, the central body having a central bore therethrough extending between first and second ends within a well bore at a desired location.
  • the methods further comprise translating the central member of the body relative to a collar therearound so as to frictionally drag radially outwardly biased collet arms against a well bore and engaging a cone secured to the central body upon the plurality of arms to pivot the plurality of arms into contact with a well bore wall.
  • Figure 1 is a cross-sectional view of a wellbore having a liner hanger according to a first embodiment located therealong.
  • Figure 2 is a perspective view of the packer according to a first embodiment.
  • Figure 3 is a cross sectional view of the packer of Figure 2.
  • Figure 4 is a detailed cross view of the extending arms of the packer of
  • Figure 5 is a detailed exploded view of arms of the packer of Figure 2 at a second position.
  • Figure 6 is a detailed plan view of the indexing slots of Figure 2.
  • Figure 7 is a detailed layout of the indexing slots of Figure 2.
  • Figure 8 is a detailed cross view of the extending arms of the packer of
  • Figure 9 is a detailed perspective view of first end of the packer of Figure 2
  • Figure 10 is a detailed perspective view of first end of the packer of Figure 2
  • Figure 11 is a detailed perspective view of first end of the packer of Figure 2
  • Figure 12 is a side view of the packer of Figure 2 located within a well at an expanded position.
  • Figure 13 is a detailed cross sectional view of the first and second unloader stage according to a further embodiment of the present disclosure.
  • Figure 14 is a detailed perspective view of the collet arms according to a further embodiment of the present disclosure.
  • Figure 15 is a detailed perspective view of the sealing elements according to a further embodiment of the present disclosure.
  • a wellbore 10 is drilled into the ground 8 to a production zone 6 by known methods.
  • the production zone 6 may contain a horizontally extending hydrocarbon bearing rock formation or may span a plurality of hydrocarbon bearing rock formations such that the wellbore 10 has a path designed to cross or intersect each formation. As illustrated in Figure 1 ,
  • the wellbore includes a vertical section 12 having a valve assembly or Christmas tree 14 at a top end thereof and a bottom or production section 16 which may be horizontal or angularly oriented relative to the horizontal located within the production zone 6.
  • a production string 18 is located therein with at a packer 20 to isolate a zone 19 within the well.
  • a packer according to a first embodiment is illustrated generally at 20.
  • the packer 20 extends between first and second ends, 22 and 24, respectively, and is formed around a central tubular member or mandrel 26.
  • the central mandrel 26 includes the second end 24 which is operable to have a production string 18 connected thereto according to known methods such as threading and the like.
  • the packer 20 includes gripping arm slips 40 proximate to the second end 24, a release section 100 proximate to the first end 22 and at least one seal element 90 between top and bottom extrusion blocks, 92 and 94.
  • the packer 20 includes an elongate central mandrel 26 extending between first and second ends, 28 and 30, respectively.
  • the second end 30 of the mandrel forms the second end 24 of the packer.
  • the mandrel 26 rotatably supports a collet arms 72 and the gripping arm slips 40 therearound as will be more fully described below.
  • the slip 40 comprises a plurality of longitudinally extending arms 42 extending in a direction generally towards the first end 22 of the packer.
  • the arms 42 have proximate 43 and distal ends 44 wherein the distal ends have outwardly oriented bore engaging surfaces 48 as are commonly known and an inner angled surface 46.
  • the arms 42 include a notch 41 on the outside surface thereof for receiving a portion of the cage therein as will be more fully described below.
  • the arms 42 extend substantially parallel to the mandrel 26.
  • the arms 42 may be located within slots 50 of a slip cage 52 so as maintain a relative position and alignment of the arms 42 around the mandrel 26.
  • the arms 42 may be retained within the slip cage 54 by locating a portion 56 of the slip cage between the slots 50 and the top end of the slip cage. As illustrated.
  • each arm includes at least one bore 64 in a bottom thereof sized to receive a biasing pin 66 with a corresponding spring 68.
  • the bores 64 are located with the inwardly oriented surface of the arms between the notch 41 and the proximate ends 43.
  • the biasing pins 66 extend from the bores 64 to engage upon the slip housing so as to bias the arms to a retraced position.
  • the slip 40 includes a cone 60 associated therewith comprising a tubular body slidably located around the mandrel 26.
  • the cone 60 includes an angled trailing surface 62 corresponding to the bottom surface 46 of the arms 42.
  • the slip 40 further includes a drive housing 70 located towards the second end 24 of the packer 20.
  • the drive housing 70 comprises a tubular body engaging with and abutting against the slip housing 58 and the slip cage 52 so as to be operable to move the slip housing, slip cage and arms longitudinally along the mandrel.
  • the drive housing further includes a plurality of longitudinally extending collet arms 72 extending in a direction towards the second end 24 of the packer.
  • the collet arms include a radially extended contact surface 74 and are radially flared from the packer as illustrated in Figures 2 and 3 so as to cause the contact surface 74 to engage upon the liner of the wellbore and cause drag therewith.
  • the contact surfaces 74 may be substantially the same width as the collet arms 72 or may optionally have tapered edges as illustrated in Figure 14 to provide additional space for fluid flow therepast.
  • the drive housing includes a plurality of pins 76 extending radially inwardly therefrom which are received with in a profiled groove 78 on the outside surface of the mandrel.
  • a perspective view of the mandrel 26 is illustrated.
  • the profiled groove 78 extends around the mandrel 26 and includes a plurality of indexing notches 80 located along the edge towards the second end 24 of the packer.
  • the profiled groove 78 further includes alternating long and short slots, 82 and 84, respectively along the edge towards the first end 22 of the packer.
  • the indexing notches 80 are arranged to be located intermediate the long and short 82 and 84 slots with angled walls 86 and 88 on one side thereof each so as to cause the pins 76 to be alternatingly advanced between the long and short slots as the mandrel is cycled forwards and backwards relative to the drive housing as illustrated in Figure 7.
  • the drive housing will be prevented from moving towards the first end 22 of the packer thereby preventing the arms 42 from being extended.
  • the drive housing 70 will be permitted to move towards the first end 22 thereby extending the arms 42.
  • the packer 20 includes seal elements 90 located around the mandrel 26 at a position towards the first end 22 from the arms 42 between the top and bottom extrusion blocks 92 and 94.
  • the bottom extrusion block is secured to the cone 60 and the top extrusion block is secured to the mandrel 26.
  • the pins 76 when the pins 76 are located within the long slots 84 and the mandrel pressed toward the second end 24, the arms 42 will extend engaging the well bore wall.
  • the seal elements may include at least one annular spring element 95 therein providing a radially non-compressible core in each seal element so as to prevent the seal element 90 from extruding past the top or bottom extrusion block.
  • the seal elements 90 may also include a spacer therebetween 93.
  • the packer may include 3 seal elements 90 however it will be appreciated that more or less than 3 may also be utilized.
  • the release section 100 located proximate to the first end 22 of the packer 20 is illustrated.
  • the release section includes a top collar 102 forming the first end 22 of the packer.
  • the top collar 102 may include a threaded bore 104 into the end thereof for connection to the production string as is commonly known.
  • the release section 100 includes a bypass mandrel 106 secured to the top collar 102 with first and second bypass plugs, 108 and 110 respectively.
  • the bypass mandrel 106 is secured to the top collar 102 at a first end 112 of thereof.
  • the first bypass plug 108 is secured with within a bore 114 at a second end 116 of the bypass mandrel by fasteners 118 or the like.
  • the first bypass plug 108 comprises a body having a cylindrical seal section 120 with at least one seal 122 extending therearound which is sized to be sealably received within a corresponding bore 130 of the second bypass plug 110.
  • the first bypass plug 108 may include two seals, however it will be appreciated that one or three or more seals 122 may also be utilized as illustrated in Figure 13.
  • the second bypass plug 110 comprises a tubular body extending between first and second ends, 132 and 134 respectively and having a central bore 130 extending therethrough.
  • the second bypass plug 110 includes a cylindrical seal section 136 extending from the second end 134 with at least one seal 138 extending therearound.
  • the second bypass plug 110 may include two seals, however it will be appreciated that one or three or more seals may also be utilized.
  • the central mandrel 26 includes a central bore 140 sized to sealably receive the seal section 136 of the second bypass plug 110 therein.
  • the second bypass plug 110 may include a centralizing extension 142 extending therefrom for maintaining the second bypass plug 110 in axial alignment with the central mandrel 26 when the second bypass plug 1 10 is removed therefrom as illustrated in Figure 11.
  • the first bypass plug 108 may also include a radiued annular flange 115 sized and shaped to be sealably received against a corresponding filleted recession 117 in the first end 132 of the second bypass plug 110 around the central bore 130 thereof.
  • annular flange 115 will bear against the recession to provide an additional seal therebetween.
  • the top collar 102 when a user wishes to release the packer, the top collar 102 is drawn in a direction generally indicated at 160 away from the second end 24 of the packer.
  • the top collar 102 pulls the bypass mandrel 106 with it drawing the first bypass plug 108 so as to disengage it from the central bore 130 of the second bypass plug 110 thereby permitting full flow of material therethrough in a direction generally indicated at 170.
  • the bypass mandrel 106 includes an extension sleeve 144 with a distal interior ridge 146.
  • the interior ridge 146 is adapted to engage a corresponding exterior ridge 148 on the first end 132 of the second bypass plug 110.
  • the central mandrel 26 includes and extension sheath 150 extending from the first end 28 thereof.
  • the extension sheath includes an interior ridge 152 at a distal end 156 thereof adapted to engage an exterior ridge 154 on the bypass mandrel 106.
  • the extension sheath 150 and thereby the central mandrel 26 will be drawn in the retraction direction as well. It will be appreciated that movement of the central mandrel 26 will cause the cone 60 to be pulled away from the arms 42 thereby permitting the arms to disengage from the well bore wall as well as decompressing the sealing elements.
  • packer 20 may be removed or repositioned as desired. If the packer 20 is desired to be repositioned, it may be positioned at the desired location in the well and a downward force applied [0030] While specific embodiments have been described and illustrated, such embodiments should be considered illustrative only and not as limiting the disclosure as construed in accordance with the accompanying claims.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Joints Allowing Movement (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Abstract

L'invention concerne une garniture d'étanchéité et un appareil destiné à venir en prise avec la garniture d'étanchéité dans un trou de forage. L'appareil comprend un corps central et un cône fixé au corps central comportant une surface inclinée orientée vers la seconde extrémité et un collier qui peut effectuer un mouvement de translation le long du corps central, le collier étant agencé entre le cône et la seconde extrémité du corps central et une pluralité de bras, chaque bras étant positionné de façon pivotante par rapport au collier autour d'une périphérie du corps central, des bras s'étendant entre une première et une seconde extrémité et comportant des surfaces de préhension autour de l'une de ses surfaces extérieures à proximité des premières extrémités. Le procédé consiste à déplacer l'élément central du corps par rapport à un collier agencé autour de celui-ci de manière à traîner par friction les bras de serrage contre un puits de forage et à venir en contact avec le cône sur la pluralité de bras pour faire pivoter la pluralité de bras en contact avec une paroi de puits de forage.
PCT/US2015/017906 2014-02-28 2015-02-27 Bras de préhension rotatifs WO2015131004A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/121,939 US20170175483A1 (en) 2014-02-28 2015-02-27 Rotating grip arms

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461946389P 2014-02-28 2014-02-28
US61/946,389 2014-02-28

Publications (1)

Publication Number Publication Date
WO2015131004A1 true WO2015131004A1 (fr) 2015-09-03

Family

ID=54009640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/017906 WO2015131004A1 (fr) 2014-02-28 2015-02-27 Bras de préhension rotatifs

Country Status (3)

Country Link
US (1) US20170175483A1 (fr)
AR (1) AR099600A1 (fr)
WO (1) WO2015131004A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921045A (en) * 1985-12-06 1990-05-01 Baker Oil Tools, Inc. Slip retention mechanism for subterranean well packer
US20020121380A1 (en) * 2001-03-01 2002-09-05 Doane James Christopher Collet-cone slip system for releasably securing well tools
US20110056676A1 (en) * 2009-09-08 2011-03-10 Weatherford/Lamb, Inc. Removable Hydraulic-Set Packer
US20110147013A1 (en) * 2009-12-18 2011-06-23 Marion Dewey Kilgore Retrieval Method For Opposed Slip Type Packers
US20120055667A1 (en) * 2009-05-01 2012-03-08 Weatherford/Lamb, Inc. Wellbore isolation tool using sealing element having shape memory polymer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921045A (en) * 1985-12-06 1990-05-01 Baker Oil Tools, Inc. Slip retention mechanism for subterranean well packer
US20020121380A1 (en) * 2001-03-01 2002-09-05 Doane James Christopher Collet-cone slip system for releasably securing well tools
US20120055667A1 (en) * 2009-05-01 2012-03-08 Weatherford/Lamb, Inc. Wellbore isolation tool using sealing element having shape memory polymer
US20110056676A1 (en) * 2009-09-08 2011-03-10 Weatherford/Lamb, Inc. Removable Hydraulic-Set Packer
US20110147013A1 (en) * 2009-12-18 2011-06-23 Marion Dewey Kilgore Retrieval Method For Opposed Slip Type Packers

Also Published As

Publication number Publication date
US20170175483A1 (en) 2017-06-22
AR099600A1 (es) 2016-08-03

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