WO2011014565A2 - Système de dilatation linéaire à ensemble sabot récupérable - Google Patents

Système de dilatation linéaire à ensemble sabot récupérable Download PDF

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Publication number
WO2011014565A2
WO2011014565A2 PCT/US2010/043562 US2010043562W WO2011014565A2 WO 2011014565 A2 WO2011014565 A2 WO 2011014565A2 US 2010043562 W US2010043562 W US 2010043562W WO 2011014565 A2 WO2011014565 A2 WO 2011014565A2
Authority
WO
WIPO (PCT)
Prior art keywords
tubular member
assembly
expansion
flowbore
shoe assembly
Prior art date
Application number
PCT/US2010/043562
Other languages
English (en)
Other versions
WO2011014565A3 (fr
Inventor
Michael Dennis Bullock
Gregory Marshall Noel
Original Assignee
Enventure Global Technology, Llc
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, Llc filed Critical Enventure Global Technology, Llc
Publication of WO2011014565A2 publication Critical patent/WO2011014565A2/fr
Publication of WO2011014565A3 publication Critical patent/WO2011014565A3/fr

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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
    • 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
    • E21B43/105—Expanding tools specially adapted therefor

Definitions

  • the present disclosure relates generally to an apparatus for expanding tubular members. More particularly, the present disclosure relates to a recoverable shoe assembly for a liner expansion system.
  • a drill string initially forms a borehole, and a casing is then installed at the top portion of the borehole.
  • the drill string extends the length of the borehole below the casing.
  • An expandable tubular member, or liner is then suspended by an expansion assembly within the casing.
  • the expansion assembly includes a tubular member supporting an expansion cone. The expandable liner is then radially expanded by the expansion cone into engagement with the casing to extend the lining of the borehole.
  • the expandable liner includes a shoe at its lower end and a launcher assembly disposed therebetween.
  • the shoe has a valveable passage extending therethrough.
  • the launcher assembly has a lower portion connected to the shoe, an upper portion connected to the expandable liner, and a tapered portion extending therebetween.
  • the inner diameter of the lower portion is greater than that of the upper portion, enabling the launcher assembly to receive the expansion cone therein.
  • the expansion cone sealingly engages the lower portion of the launcher assembly.
  • a chamber is formed within the launcher assembly between the expansion cone and the shoe.
  • the shoe passage when open or closed, enables or prevents, respectively, fluid communication between the launcher assembly chamber and the annulus between the borehole and expandable liner.
  • the expandable liner is supported by the tubular support member via engagement between the tapered portion of the launcher assembly and the expansion cone.
  • a ball, or dart Prior to expansion of the expandable liner, a ball, or dart, is delivered via pressurized fluid injected from the surface through the tubular support member, expansion cone, and launcher assembly to seat on the shoe passage, thereby closing the passage and preventing subsequent flow of the pressurized fluid therethrough.
  • pressurized fluid causes pressurized fluid to fill the launcher assembly chamber.
  • the pressure of fluid contained within the launcher assembly chamber reaches a sufficient level, the fluid pressure causes the expansion cone disposed within the launcher assembly to displace upward within the launcher assembly into the expandable liner.
  • engagement between the cone and the liner causes radial expansion of the liner.
  • the expansion cone is removed from the borehole.
  • the shoe coupled to the lower end of the expanded liner must first be removed.
  • the drill string is inserted within the liner, and the shoe is drilled out.
  • successive expandable tubulars may be installed and the borehole extended in the same manner until the wellbore reaches the desired depth.
  • a system including a recoverable shoe assembly for expanding a tubular member, or liner is disclosed.
  • the expansion system includes an expansion assembly disposed in sealingly engagement within the tubular member, a shoe assembly releasably coupled within the tubular member, and a chamber disposed therebetween.
  • the expansion assembly has a flowbore and a openable port.
  • the shoe assembly includes a flowbore extending therethrough, the flowbore in fluid communication with the flowbore of the expansion assembly and having a valveable passage. When the valveable passage is closed, the port is adapted to open, whereby the chamber is fluidicly coupled to the flowbore of the expansion assembly. When the valveable passage is open, the port remains closed, whereby the chamber is fluidicly isolated from the flowbore of the expansion assembly.
  • the expansion system includes a tubular launcher having a plurality of circumferentially-spaced slots extending therethrough and a shoe assembly sealingly disposed therein.
  • the shoe assembly has a flowbore extending therethrough, the flowbore having a valveable passage, and a plurality of members, each member radially moveable between an extended position and a retracted position.
  • each member engages one of the slots, whereby rotation of the shoe assembly relative to the tubular launcher is prevented and whereby axial translation of the shoe assembly relative to the tubular member is prevented in at least a first direction.
  • each member is disengaged from the slots.
  • Some methods for expanding a tubular member, or liner, in a wellbore include releasably coupling a shoe assembly within the tubular member, delivering pressurized fluid through a flowbore of the shoe assembly, the flowbore having a valveable passage, closing the valveable passage, whereby the pressurized fluid is diverted into a chamber disposed between the shoe assembly and an expansion cone, translating the expansion cone relative to the tubular member under hydraulic pressure, whereby the expansion cone radially expands the tubular member, disengaging the shoe assembly from the tubular member, and retrieving the shoe assembly from the wellbore.
  • Figure 1 is a cross-sectional view of a liner expansion system including a recoverable shoe assembly in accordance with the principles disclosed herein;
  • Figure 2 is a cross-sectional view of the expansion cone of Figure 1;
  • Figure 3 is a cross-sectional view of the launcher assembly of Figure 1 ;
  • Figure 4 is a schematic, side view of the collet assembly of Figure 1;
  • Figure 5 is a schematic side view of the collet assembly assembled between the expansion cone and the lower launcher of Figure 1 ;
  • Figure 6 is a schematic, side view of the guide mandrel of Figure 1;
  • Figures 7A and 7B are cross-sectional views of a liner expansion system including another embodiment of a recoverable shoe assembly coupled to and released from, respectively, an expandable liner.
  • the terms “including” and “comprising” are used in an open-ended fashion, and thus should be interpreted to mean “including, but not limited to... .”
  • the term “couple” or “couples” is intended to mean either an indirect or direct connection. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices and connections.
  • the terms “axial” and “axially” generally mean along or parallel to a central or longitudinal axis.
  • radial and radially generally mean perpendicular to the central or longitudinal axis
  • azimuth and azimuthally generally mean perpendicular to both the central or longitudinal axis and a radial axis normal to the central longitudinal axis. As used herein, these terms are consistent with their commonly understood meanings with regard to a cylindrical coordinate system.
  • Liner expansion system 100 includes an expansion assembly 105 coupled to a recoverable shoe assembly 110 installed within an expandable tubular member, or liner, 115.
  • Expansion assembly 105 is hydraulically actuatable to displace upward within expandable liner 115 relative to shoe assembly 110 to radially expand liner 115.
  • Shoe assembly 110 enables coupling of a pressurized fluid source (not shown) to expansion assembly 105, whereby pressurized fluid is delivered through expansion assembly 105 to a chamber 120 within expandable liner 115.
  • the pressurized fluid within chamber 120 causes upward displacement of expansion assembly 105 within expandable liner 115, whereby engagement between expansion assembly 105 and liner 115 causes radial expansion of liner 115.
  • Shoe assembly 110 also sealingly engages the lower end 125 of expandable liner 115 to enable pressurization of chamber 120.
  • Expansion assembly 105 includes an expansion cone 130, an expansion mandrel 135 inserted therethrough, and a tubular support member 140 coupled to the upper end 145 of expansion mandrel 135.
  • Tubular support member 140 has a flowbore 150 extending therethrough, and, in this embodiment, is coupled to upper end 145 of expansion mandrel 135 via mating threads 155 formed on the inner and outer surfaces of tubular support member 140 and expansion mandrel 135, respectively.
  • Flowbore 150 of tubular support member 140 is in fluid communication with, or is fluidicly coupled to, the pressurized fluid source.
  • Expansion mandrel 135 has a flowbore 160 extending therethrough.
  • flowbore 160 is in fluid communication with flowbore 150 of tubular support member 140.
  • Expansion mandrel 135 further includes one or more ports 165 extending therethrough.
  • a rupture or burst disc 170 is seated within each port 165. Each rupture disc 170 is configured to prevent fluid flow through port 165 when the pressure of fluid passing through flowbore 160 is less than a preselected level and to burst or rupture when the fluid pressure exceeds the preselected level to allow fluid flow through port 165.
  • expansion mandrel 135 further includes generally radially extending upper and lower surfaces 137, 139, respectively.
  • expansion assembly 105 When expansion assembly 105 is installed within expandable liner 115, as shown in Figure 1, expansion cone 130 is supported by upper surface 137 of expansion mandrel 135.
  • expansion mandrel 135 further includes a plurality of circumferentially-spaced splines 230 extending from lower surface 139. Each spline 230 has a length 235 extending substantially parallel to a longitudinal centerline 228 of expansion mandrel 135 and a width 240 that extends substantially circumferentially or azimuthally relative to centerline 225.
  • splines 230 may be referred to as longitudinally or axially disposed splines.
  • a recess 245 is formed between each pair of adjacent splines 230.
  • Splines 230 are configured to matingly engage and interlock with another set of splines extending from recoverable shoe assembly 110, as will be described.
  • Expansion cone 130 has a throughbore 175 configured to receive expansion mandrel 135 therethrough.
  • Expansion cone 130 further includes an upper portion or neck 180, a lower portion or base 185, and a tapered portion 190 extending therebetween.
  • Neck 180 of expansion cone 130 has an outer surface 195 defined by a diameter that enables insertion of neck 180 into an unexpanded portion 200 (Fig. 1) of liner 115 when expansion assembly 105 is installed within expandable liner 115, as shown in Figure 1.
  • Base 185 has an outer surface 205 defined by a diameter that enables radial expansion of liner 115 to the desired inner diameter and/or wall thickness.
  • Tapered portion 190 of expansion cone 130 has an outer surface 210 configured to engage an inner surface 215 (Fig.
  • expandable liner 115 includes a launcher assembly 250 at its lower end 125.
  • launcher assembly 250 includes two separate components 260, 265 joined end-to-end by a weld 270. In other embodiments, however, launcher assembly 250 may be a single-piece component.
  • launcher assembly 250 includes an upper launcher 260 and a lower launcher 265.
  • Upper launcher 260 is tubular, having a lower portion 275, an upper portion 280, and a tapered portion 285 extending therebetween.
  • Upper portion 280 has an inner surface 290 defined by a diameter corresponding to the inner diameter of expandable liner 115 prior to radial expansion.
  • Lower portion 275 has an inner surface 295 defined by a diameter that enables expansion cone 130 and shoe assembly 110 to be inserted therein, as shown in Figure 1.
  • inner surface 215 of tapered portion 285 engages outer surface 210 of tapered portion 190 of expansion cone 130 during expansion of liner 115.
  • Lower launcher 265 is also tubular, having an outer surface 315 and an inner surface 305 defined by a diameter that enables expansion cone 130 and shoe assembly 110 to be inserted therethrough.
  • the diameter of inner surface 305 is substantially constant along the length of lower launcher 265.
  • the diameter of inner surface 305 is slightly less than the inner diameter of lower portion 275 of upper launcher 260 to promote sealing between lower launcher 265 and shoe assembly 110.
  • Lower launcher 265 further includes a plurality of circumferentially-spaced slots 310 extending therethrough.
  • Each slot 310 has a height 335 and a width 340.
  • each slot 310 is bounded by a lower surface 320 and an upper surface 325.
  • lower surface 320 is generally planar and extends normally relative to a longitudinal centerline 345 of launcher assembly 250.
  • Upper surface 325 is generally planar as well but offset relative to centerline 345 by an angle 330. The angular orientation of upper surface 325 is such that height 335 of slot 310 increases through the wall of lower launcher 265 from outer surface 315 toward inner surface 305.
  • recoverable shoe assembly 110 includes a collet assembly 350 and a guide mandrel 355 inserted therein.
  • collet assembly 350 is coupled between expansion mandrel 135 of expansion assembly 105 and lower launcher 265 of launcher assembly 250.
  • collet assembly 350 has a longitudinal centerline 400. The right half of this figure, defined by centerline 400, is shown in cross-section while the left half of this figure is not.
  • Collet assembly 350 further includes a seal mandrel 360 having a generally cylindrical body 362 with an upper end 365 and a lower end 370.
  • Seal mandrel 360 further includes an outer surface 375 and an inner surface 377 extending between upper and lower ends 365, 370.
  • a groove 380 is formed in outer surface 375 to receive a sealing element 385, such as but not limited to an O-ring.
  • collet assembly 350 further includes a plurality of circumferentially-spaced splines 390 extending from upper end 365 of seal mandrel 360.
  • Each spline 390 has a length 395 extending substantially parallel to longitudinal centerline 400 of collet assembly 350 and a width 405 that extends substantially circumferentially or azimuthally about centerline 400.
  • splines 390 may also be referred to as longitudinally or axially disposed splines.
  • a recess 410 is formed between each pair of adjacent splines 390.
  • Splines 390 are configured to matingly engage and interlock with splines 230 of expansion mandrel 135, as illustrated by Figure 5.
  • length 395 and width 405 of each spline 390 is selected to enable spline 390 to be received within a recess 245 between adjacent splines 230 of expansion mandrel 135.
  • length 235 and width 240 of each spline 230 of expansion mandrel 135 is selected to enable each spline 230 to be received in a recess 410 between adjacent splines 390 of collet assembly 350.
  • collet assembly 350 further includes a plurality of circumferentially-spaced collets 415 extending from lower end 370 of seal mandrel 360.
  • Collets 415 are configured to enable releasable coupling of collet assembly 350 within launcher assembly 250.
  • Each collet 415 is flexible to enable limited bending relative to seal mandrel 360.
  • Each collet 415 has an inner surface 530 defined by a diameter greater than a diameter of inner surface 377 of seal mandrel 360. Hence, a shoulder 534 is formed in collet assembly 350 at the transition between seal mandrel 360 and collets 415.
  • Each collet 415 also has a foot 420 that is insertable within and releasable from a slot 310 (Fig. 3) of lower launcher 265.
  • a foot 420 that is insertable within and releasable from a slot 310 (Fig. 3) of lower launcher 265.
  • each collet 415 can bend radially inward to enable translation of collet assembly 350 within lower launcher 265 until foot 420 engages, or snaps into, a slot 310, as illustrated by Figure 5. Subsequently, each collet 415 can again bend radially inward to enable disengagement of foot 420 from slot 310.
  • each foot 420 of collets 415 has a width 427 that is slightly less than width 340 (Fig. 3) of the slot 310.
  • Each foot 420 is bounded by a lower surface 425 configured to engage lower surface 320 (Fig. 3) of slot 310 and an upper surface 430 configured to slidingly engage upper surface 325 (Fig. 3) of slot 310.
  • lower surface 425 like lower surface 320, is generally planar and extends normally relative to longitudinal centerline 400 of collet assembly 350.
  • Upper surface 430 like upper surface 325 of slot 310, is generally planar as well but offset relative to centerline 400 by an angle 435 that is substantially equal to angle 330 of upper surface 325.
  • collet assembly 350 When installed within lower launcher 265, as shown in Figure 5, collet assembly 350 is prevented from rotating relative to lower launcher 265 due to engagement between feet 420 of collets 415 with bounding surfaces of slots 310 of lower launcher 265. Further, collet assembly 350 is prevented from downward axial translation, or translation away from expansion mandrel 135, relative to lower launcher 265 due to engagement between lower surfaces 425 of feet 420 and lower surfaces 320 of slots 310. However, collet assembly 350 may translate in the opposite direction, or axially upward, relative to lower launcher 265 when sufficient upward tension is applied to collet assembly 350. This relative movement is enabled by the sliding engagement between tapered, upper surfaces 430 of feet 420 and similarly tapered, upper surfaces 325 of slots 310. Thus, under sufficient upward tension, collet assembly 350 disengages lower launcher 265.
  • guide mandrel 355 is tubular in nature, having a flowbore 440 extending therethrough between an inlet 445 and an outlet 450.
  • Flowbore 440 includes an upper portion 455, a lower portion 460, and a tapered portion 465 extending therebetween.
  • Lower portion 460 is bounded by an inner surface 470 of guide mandrel 355 defined by a diameter that is smaller than a diameter of an inner surface 475 of guide mandrel 355 bounding upper portion 455.
  • tapered portion 465 forms a ball seat 480.
  • Guide mandrel 355 further includes a generally cylindrical body 485 extending between a fishing neck 490 and a guide nose 495.
  • Fishing neck 490 is configured to be insertable within flowbore 160 of expansion mandrel 135 of expansion assembly 105 when shoe assembly 110 is installed within expandable liner 115 in engagement with expansion assembly 105, as shown in Figure 1.
  • flowbore 440 of guide mandrel 355 is in fluid communication with, or fluidicly coupled to, flowbore 160 of expansion mandrel 135, and fishing neck 490 sealingly engages the inner surface of expansion mandrel 135 and collet assembly 350 via sealing elements 492 (Fig. 1).
  • pressurized fluid injected from the surface passes from flowbore 160 of expansion mandrel 135 through flowbore 440 of guide mandrel 355, exiting guide mandrel 355 through outlet 450.
  • a ball (not shown) may be introduced to the pressurized fluid at the surface and delivered through upper portion 455 of flowbore 440 to ball seat 480, whereby fluid flow through guide mandrel 355 is prevented.
  • Guide nose 495 has an upper end 510 connected to body 485, a lower end 515 wherein outlet 450 of flowbore 440 is disposed, and an outer surface 520 extending therebetween.
  • the diameter of guide nose 495 at upper end 510 is greater than that of guide nose 495 at lower end 515.
  • the diameter of outer surface 520 increases from lower end 515 of guide nose 495 to upper end 510. Tapering of outer surface 520 in this manner enables run-in of liner expansion system 100 into a wellbore containing fluid.
  • tapered surface 520 is less resistive to fluid flow than some surfaces having other shapes or orientations.
  • the outer diameter of guide nose 495 at upper end 510 is greater than that of cylindrical body 485 coupled thereto.
  • a shoulder 525 is formed in guide mandrel 355 at the transition between guide nose 495 and body 485.
  • the outer diameter of guide nose 495 at shoulder 525 is less than that of inner surfaces 305, 295 of lower and upper launchers 265, 260, respectively. This enables guide mandrel 355 to be pulled from liner 115 via wireline, or similar device, as will be described below.
  • the outer diameter of guide nose 495 at shoulder 525 is greater than the diameter of inner surface 377 (Fig. 4) of seal mandrel 360.
  • shoulder 525 enables retrieval of collet assembly 350 with guide mandrel 355 when the latter is pulled from liner 115.
  • guide mandrel 355 initially displaces axially upward relative to collet assembly 350 until shoulder 525 of guide mandrel 355 engages shoulder 534 of collet assembly 350. Additional tension to guide mandrel 355 causes guide mandrel 355 to displace collet assembly 350 axially upward such that collets 415 disengage slots 310 of lower launcher 265. Once disengaged, collet assembly 350 is supported by guide mandrel 355 as guide mandrel 355 and collet assembly 350 are pulled from the wellbore.
  • Body 485 of guide mandrel 355 includes lower portion 535 connected to guide nose 495 and an upper portion 540 extending between lower portion 535 and fishing neck 490.
  • Lower portion 535 has an outer surface 565 defined by a diameter that is smaller than that of inner surface 530 of collets 415 to provide a clearance 570 (Fig. 1) therebetween.
  • Clearance 570 between collets 415 and guide mandrel 355 enables collets 415 to bend radially inward to engage and disengage slots 310 of lower launcher 265, as described above.
  • Upper portion 540 of body 485 has an outer surface 545 defined by a diameter that is slightly less that the diameter of an inner surface 550 (Fig. 1) of seal mandrel 360.
  • Upper portion 540 includes a groove 555 formed in outer surface 545 to receive a sealing element 560, such as but not limited to an O-ring.
  • sealing element 555 sealing engages inner surface 550 of seal mandrel 360 to prevent leakage of pressurized fluid from chamber 120 between guide mandrel 355 and collet assembly 350 during expansion of liner 115.
  • guide mandrel 355 may include either or both of an external fishing profile 500 and an internal fishing profile 505, each configured to enable retrieval of guide mandrel 355 and other components coupled thereto, such as collet assembly 350, from a wellbore in which liner expansion system 100 is installed.
  • guide mandrel 355 includes both.
  • External fishing profile 500 is an annular lip formed about the free end of fishing neck 490.
  • Internal fishing profile 505 is a shoulder formed along inner surface 455 bounding flowbore 440 proximate inlet 445.
  • a wireline, or similar device is lowered from the surface into the wellbore to enclose about lip 500 or to engage shoulder 505. Once connected thereto, the wireline may then be used to pull guide mandrel 355 and collet assembly 350 from the wellbore.
  • expansion assembly 105 is installed within expandable liner 115.
  • Expansion mandrel 135 is inserted through bore 175 of expansion cone 130, and expansion cone 130, with expansion mandrel 135 disposed therein, is inserted through lower launcher 265 into upper launcher 260 of launcher assembly 250.
  • recoverable shoe assembly 110 is then coupled to expansion assembly 105 and expandable liner 115.
  • Guide mandrel 355 is inserted through collet assembly 350 such that fishing neck 490 of guide mandrel 355 extends into flowbore 160 of expansion mandrel 135 and shoulder 525 of guide mandrel 355 abuts shoulder 534 of collet assembly 350.
  • Collet assembly 350 with guide mandrel 355 disposed therein, is inserted into lower launcher 265 to engage collets 415 of collet assembly 350 within slots 310 of lower launcher 265.
  • Guide mandrel 355 is coupled in position within collet assembly 350 with one or more shear pins 357 (Fig. 1) extending between guide mandrel 355 and launcher assembly 250.
  • the assembled components are then run-in to a wellbore to the desired depth.
  • tubular support member 140 is coupled to the installed liner expansion system 100 to provide pressurized fluid to system 100 for expansion of liner 115.
  • Tubular support member 140 is inserted downhole to couple with expansion mandrel 135.
  • tubular support member 140 threadingly engages expansion mandrel 135 via mating threads 155.
  • collet assembly 350 when collet assembly 350 is installed within lower launcher 265, the engagement of feet 420 of collets 415 of collet assembly 350 within slots 310 of lower launcher 265 prevents relative rotation of these components.
  • collet assembly 350 is coupled to expansion cone 130 of expansion assembly 105 via interlocking splines 230, 390, collet assembly 350 cannot rotate relative to expansion cone 130.
  • expansion cone 130 and expansion mandrel 135 disposed therein are prevented from rotating relative to liner 115. This enables rotational coupling of tubular support member 140 to expansion mandrel 135.
  • pressurized fluid is delivered from the pressurized fluid source at the surface through flowbore 150 of tubular support member 140, flowbore 160 of expansion mandrel 135, and flowbore 440 of guide mandrel 355 to exit system 100 via outlet 450.
  • a ball (not shown) is introduced to the pressurized fluid at the surface.
  • the pressurized fluid carries the ball along the same path to seat on ball seat 480, whereby the flow of pressurized fluid from guide mandrel 355 through outlet 450 is interrupted.
  • flexible collets 415 enable releasable coupling of recoverable shoe assembly 110 to launcher assembly 250.
  • the recoverable shoe assembly may include a plurality of lugs that are extendable and retractable to engage and release, respectively, the launcher assembly.
  • FIG. 7A and 7B depicts a liner expansion system with another recoverable shoe assembly in accordance with the principles disclosed herein installed within a lower launcher.
  • lower launcher 615 is also tubular, having an outer surface 620 and an inner surface 625 defined by a diameter than enables expansion cone 130 and shoe assembly 600 to be inserted therethrough.
  • Lower launcher 615 further includes a plurality of circumferentially-spaced slots 630 extending therethrough.
  • Recoverable shoe assembly 600 includes a seal mandrel 605, guide mandrel 355 disposed therein, and a plurality of circumferentially-spaced lugs 610 that are extendable to engage slots 630 of lower launcher 615, as shown in Figure 7 A, and retractable to disengage slots 630, as shown in Figure 7B.
  • Seal mandrel 605 has a generally cylindrical body 635 with an upper end (not shown) and a lower end 640.
  • seal mandrel 605, like seal mandrel 360 described above, includes a plurality of splines 390 extending from its upper end.
  • Splines 390 are configured to matingly engage and interlock with splines 230 of expansion mandrel 135. When the interlocking splines 230, 390 are so engaged, they form an interlocking mechanism between expansion assembly 105 and shoe assembly 600 to prevent relative rotation therebetween.
  • Seal mandrel 605 further includes a plurality of circumferentially-spaced slots 645 extending therethrough. Each slot 645 is configured to receive a lug 610, as shown.
  • Lugs 610 are actuatable to extend to engage slots 630 of lower launcher 615, as shown in Figure 7 A, and to retract to disengage slots 630, as shown in Figure 7B.
  • lugs 610 are spring-loaded and biased toward their retracted orientation.
  • Each lug 610 includes a body 650 and a head 655 coupled thereto.
  • Body 650 is configured to be received within slots 630, 645 of lower launcher and seal mandrel 605, respectively.
  • Head 655 has a cross-section that is larger than that of slot 645, thereby limiting radial extension of lug 610 within slots 630, 645.
  • Head 655 engages guide mandrel 355 when guide mandrel 355 is inserted within seal mandrel 605, as shown.
  • one or more of the radial extending surfaces 660 of head 655 are angled or cropped to enable guide mandrel 355 to be inserted between lugs 610.
  • the angular nature of surface 660 provides sliding engagement with upper portion 540 of guide mandrel 355 as guide mandrel 355 is inserted within lugs 610 and seal mandrel 605.
  • lugs 610 are installed within seal mandrel 605, and seal mandrel 605 is inserted within lower launcher 615 such that slots 630, 645 align.
  • Guide mandrel 355 is then installed within seal mandrel 605.
  • contact between upper portion 540 of guide mandrel 355 and angled surfaces 660 of lugs 610 causes lugs 610 to extend into slots 630 of lower launcher 615 and enables guide mandrel 355 to be received between lugs 610.
  • seal mandrel 605 engage slots 630, seal mandrel 605 is prevented from rotating and from translating axially relative to lower launcher 615. As previously described, this enables coupling of tubular support member 140 (Fig. 1) to expansion mandrel 135 (Fig. 1).

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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)
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Abstract

La présente invention concerne un système destiné à dilater un élément tubulaire. Dans certains modes de réalisation, le système comprend un ensemble de dilatation disposé dans l’élément tubulaire de manière à assurer un contact d’étanchéité, un ensemble sabot accouplé de manière amovible dans l’élément tubulaire, et une chambre disposée entre eux. L’ensemble de dilatation comporte un trou d’écoulement et un orifice pouvant être ouvert. L’ensemble sabot comprend un trou d’écoulement s’étendant à travers celui-ci, le trou d’écoulement étant en communication fluidique avec le trou d’écoulement de l’ensemble de dilatation et comportant un passage pouvant loger un clapet. Lorsque le passage pouvant loger un clapet est fermé, l’orifice est conçu pour s’ouvrir, ce qui permet à la chambre d’être accouplée de manière fluidique au trou d’écoulement de l’ensemble de dilatation. Lorsque le passage pouvant loger un clapet est ouvert, l’orifice reste fermé, ce qui permet d’interrompre la communication fluidique entre la chambre et le trou d’écoulement de l’ensemble de dilatation.
PCT/US2010/043562 2009-07-29 2010-07-28 Système de dilatation linéaire à ensemble sabot récupérable WO2011014565A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/511,194 US20110024135A1 (en) 2009-07-29 2009-07-29 Liner Expansion System with a Recoverable Shoe Assembly
US12/511,194 2009-07-29

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WO2011014565A2 true WO2011014565A2 (fr) 2011-02-03
WO2011014565A3 WO2011014565A3 (fr) 2011-05-19

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US11591875B2 (en) 2020-05-11 2023-02-28 Enventure Global Technology Inc. Liner retrieval tool and method
CN114109277B (zh) * 2020-08-31 2024-05-07 中国石油化工股份有限公司 一种自适应旋转引鞋

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