WO2018080978A1 - Appareil et procédé de mise en place et réglage d'un ensemble coins - Google Patents

Appareil et procédé de mise en place et réglage d'un ensemble coins Download PDF

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Publication number
WO2018080978A1
WO2018080978A1 PCT/US2017/057838 US2017057838W WO2018080978A1 WO 2018080978 A1 WO2018080978 A1 WO 2018080978A1 US 2017057838 W US2017057838 W US 2017057838W WO 2018080978 A1 WO2018080978 A1 WO 2018080978A1
Authority
WO
WIPO (PCT)
Prior art keywords
slip
running
outer sleeve
segments
slip bowl
Prior art date
Application number
PCT/US2017/057838
Other languages
English (en)
Inventor
Dennis P. Nguyen
Original Assignee
Cameron International 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 Cameron International Corporation filed Critical Cameron International Corporation
Priority to EP17865234.3A priority Critical patent/EP3529455A4/fr
Publication of WO2018080978A1 publication Critical patent/WO2018080978A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
    • E21B23/02—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member

Definitions

  • Wellhead assemblies may include a wide variety of components, such as casing heads, tubing heads, and devices for hanging tubular strings (e.g., casing) within the well.
  • tubular strings e.g., casing
  • casing strings of different diameters in the well can be suspended from respective casing hangers installed in a wellhead.
  • Various clamping devices are used in many situations to engage a cylindrical body, such as a pipe or casing, within a circumscribing structure. Slips are examples of such clamping devices.
  • an apparatus includes a slip assembly having slip segments and a running tool to facilitate installation of the slip assembly in a bore of a housing.
  • the slip segments are received in a slip bowl in a manner that allows movement of the slip segments between a running position and a setting position.
  • the slip segments are held in the running position, such as with shear pins, during installation of the slip assembly. In some instances, this allows the slip segments to be moved along a casing string and over a protruding portion (e.g., a collar) of the casing string.
  • the slip segments Once positioned within the housing, the slip segments are moved to the setting position to grip the casing string or some other member to be held by the slip segments.
  • the running tool causes the slip segments to shear the shear pins and move from the running position to the setting position.
  • FIG. 1 generally depicts various components, including one or more tubular strings and associated slips, that can be installed at a well in accordance with an embodiment of the present disclosure
  • FIG. 2 is an exploded section view of a slip bowl assembly and a running tool in accordance with an embodiment of the present disclosure
  • FIG. 3 is a cross-section of the slip bowl assembly and running tool of FIG. 2, with slip segments of the slip bowl assembly shown in a running position and the slip bowl assembly landed in a wellhead body in accordance with an embodiment of the present disclosure;
  • FIG. 4 is a cross-section of the slip bowl assembly and running tool of FIG. 3, with the slip segments shown in a setting position in the wellhead body in accordance with an embodiment of the present disclosure
  • FIG. 5 is a cross-section of the slip bowl assembly within the wellhead body following removal of the running tool in accordance with an embodiment of the present disclosure.
  • FIG. 6 is a flowchart representing a method of installing the slip bowl assembly in a wellhead in accordance with an embodiment of the present disclosure.
  • the system 10 can be a production system that facilitates extraction of a resource, such as oil, from a reservoir 12 through a well 14.
  • Wellhead equipment 16 is installed on the well 14.
  • the wellhead equipment 16 includes at least one casing head 18 and tubing head 20 (which may also be referred to as wellhead housings or spools), as well as slips 22.
  • the components of the wellhead equipment 16 can differ between applications, and could include a variety of casing heads, tubing heads, spools, hangers, sealing assemblies, stuffing boxes, pumping tees, and pressure gauges, to name only a few possibilities.
  • the system 10 also includes a blowout preventer (BOP) 11 mounted above the wellhead equipment 16.
  • BOP blowout preventer
  • a single BOP 11 could be used, it will be appreciated that a BOP stack having multiple BOPs 11 will be mounted above the wellhead equipment 16 in some instances.
  • the slips 22 can be positioned on landing shoulders 24 within hollow wellhead bodies (e.g., within the tubing head 20 and casing head 18). These landing shoulders 24 can be integral parts of tubing head 20 and casing head 18 or can be provided by other components, such as sealing assemblies or landing rings disposed in the tubing and casing heads. Slips 22 can grip a tubular string, such as a tubing string 26 or a casing string 28, to suspend the string within the well 14.
  • the well 14 can include a single casing string 28 or include multiple casing strings 28 of different diameters.
  • Slips 22 may be provided in any suitable form, an example of which is depicted in FIG. 2. This depicted embodiment includes a running tool 100 and a slip bowl assembly 102.
  • the running tool 100 includes a running tool pipe 104 having at its lower end an inner sleeve 106 positioned within an outer sleeve 110.
  • the inner sleeve 106 is threaded to the running tool pipe 104, while the outer sleeve 110 of the running tool 100 hangs from retention pins 108 (e.g., dowel pins) carried by the inner sleeve 106.
  • retention pins 108 e.g., dowel pins
  • the retention pins 108 extend radially outward from the inner sleeve 106 into travel slots or grooves 109 on the interior surface of the outer sleeve 110.
  • the pins 108 and grooves 109 cooperate to allow the inner sleeve 106 to move axially with respect to the outer sleeve 110 while retaining the outer sleeve 110 to the inner sleeve 106.
  • the outer sleeve 110 also includes shear pins 112 for fastening slip segments 120 of the slip bowl assembly 102 to the outer sleeve 110, and retainer screws or other fasteners 114 for coupling the running tool 100 to the slip bowl assembly 102.
  • the outer sleeve 110 holds (via the shear pins 112) the slip segments 120 in a running position to facilitate running of the slip bowl assembly 102 into a wellhead housing (or other body), and relative movement of the inner sleeve 106 with respect to the outer sleeve 110 facilitates shearing of the shear pins 112 and setting of the slip segments 120.
  • the slip bowl assembly 102 depicted in FIG. 2 includes a slip bowl 116, which has a landing shoulder 119 configured to land the slip bowl assembly 102 against a mating landing shoulder (e.g., shoulder 24) of a wellhead housing (e.g., casing head 18).
  • the slip bowl 116 is annular in nature and has a substantially conical inner surface 117.
  • a plurality of slip segments 120 are positioned circumferentially about the slip bowl 116 with some clearance between adjacent slip segments 120. Any number of slip segments 120 is contemplated, though in certain embodiments the number of slip segments 120 ranges from four to eight.
  • Each slip segment 120 is moveably affixed to, and retained in, the slip bowl 116 by a holding pin 122 extending from the slip segment 120 through an elongated slot 124 in the slip bowl 116.
  • the slip segments 120 are carried in the interior of the slip bowl 116 and move (e.g., by downward force or by gravity) along the conical inner surface 117, guided by the holding pins 122 in the elongated slots 124, from an upper retracted running position to a lower setting position.
  • the slip segments 120 include outer surfaces 115 that slide on the conical inner surface 117 of the slip bowl 116 (which biases the sliding slip segments 120 inward into the setting position) and slip teeth 123 on interior surfaces of the slip segments 120 for gripping a pipe, a casing string, some other tubular string, or some other member to be held.
  • Retaining slots 118 are provided in the top surface of the slip bowl 116 for receiving the retainer screws 114 to couple the running tool 100 to the slip bowl assembly 102.
  • retaining slots 118 are configured such that coupling and uncoupling from retainer screws 114 extending axially from the outer sleeve 110 can be accomplished by rotating the running tool 100 with respect to the slip bowl assembly 102.
  • the running tool 100 can be coupled to the slip bowl assembly 102 by inserting heads of the retainer screws 114 through wider portions of the keyhole slots and then rotating the running tool 100 and the slip bowl assembly 102 with respect to one another to move the retainer screws 114 into narrower portions of the keyhole slots.
  • the running tool 100 and the slip bowl assembly 102 could be uncoupled in the reverse manner—that is, by rotating the components to align the heads of the retainer screws 114 with the wider portions of the keyhole slots and then pulling the running tool 100 and the slip bowl assembly 102 apart.
  • Running of the slip bowl assembly 102 over a casing string 126 and into a wellhead housing 130 is generally depicted in FIG. 3.
  • the casing string 126 includes casing joints connected together with casing collars 128.
  • the increased diameter of the casing string 126 at a casing collar 128 can interfere with installation of certain slip assemblies within a wellhead.
  • the shear pins 112 fasten the slip segments 120 to the outer sleeve 110 so as to hold the slip segments 120 in a retracted running position, in which the diameter of the region generally circumscribed by the retracted slip segments 120 is greater than the outer diameter of the casing collar 128.
  • slip segments 120 can pass about a casing collar 128 of the casing string 126 as the slip bowl assembly 102 is run into the wellhead housing 130 via the running tool 100.
  • the slip segments 120 held by the outer sleeve 110 in this manner, the slip bowl assembly 102 can be run into the wellhead housing 130 over the collar 128 and landed on a landing shoulder 132 of the housing 130. Consequently, the slip bowl assembly 102 can be run into the wellhead housing 130 over the collar 128 and be used to suspend the casing 126 without first cutting the casing 126 below the collar 128. While the shear pins 112 are shown in FIG.
  • shear pins 112 could also or instead be used to hold the slip segments 120 to some other component, such as to the slip bowl 116, during installation.
  • the slip bowl assembly 102 can be run into the wellhead housing 130 with the running tool 100 through the BOP 11.
  • the slip segments 120 can be moved to a setting position so as to engage and grip the casing 126, as generally shown in FIG. 4. More specifically, after landing the slip bowl assembly 102 on the landing shoulder 132, a downward force is applied to the slip segments 120 by the running tool 100 (via pipe 104 and inner sleeve 106) such that the inner sleeve 106 moves downward with respect to the outer sleeve 110, pushes the slip segments 120, and shears each of the shear pins 112 into two pieces— namely, a shear pin portion 112A that remains with the outer sleeve 110 and a shear pin portion 112B that remains with the slip segment 120.
  • slip segments 120 (which remain affixed to the slip bowl 116 via holding pins 122) move into the setting position with slip teeth 123 against the casing 126.
  • the holding pins 122 and elongated slots 124 cooperate to maintain circumferential alignment of the slip segments 120 while allowing the slip segments 120 to slide downward and radially inward until they contact the casing 126.
  • the slip segments 120 may slide downward into contact with the casing 126 under the force of gravity.
  • the pins 108 and grooves 109 enable relative axial movement of the inner sleeve 106 with respect to the outer sleeve 110, and in at least some embodiments the inner sleeve 106 is pushed downward with respect to the outer sleeve 110 to drive the slip segments 120 into the setting position. It will be appreciated that in this setting position the area generally circumscribed by the slip segments 120 (i.e., the outer diameter of the casing 126) is smaller than the outer diameter of the casing collar 128.
  • the casing 126 can be pulled upward to tension the casing to a desired hanging weight. This upward force may then be reduced to cause the slip segments 120 to tightly grip the casing 126 so that the casing 126 is held in tension and suspended within the well 14 via the slip segments 120.
  • the running tool 100 can be removed, as shown in FIG. 5 and described above.
  • FIG. 6 is a flowchart representing a method of installing the slip bowl assembly 102 in a wellhead housing 130 in accordance with one embodiment.
  • the method represented in FIG. 6 starts at 136 with connecting the slip bowl assembly 102 to the running tool 100. In at least some embodiments, this includes inserting the retainer screws 114 of the running tool 100 into retaining slots 118 of the slip bowl assembly 102, as described above. Connecting the running tool 100 and the slip bowl assembly 102 together also includes retaining the slip segments 120 in a retracted running position, such as by fastening the slip segments 120 to the outer sleeve 110 with shear pins 112 to hold the slip segments 120 away from the center of the slip bowl assembly 102.
  • the method continues at 138 with running the slip bowl assembly 102 with the running tool 100 through one or more BOPs 11 and landing the slip bowl assembly 102 on a landing shoulder 24 (e.g., shoulder 132) in a wellhead
  • BOPs 11 While BOPs 11 remain installed on the wellhead during running of the slip bowl assembly 102 in some instances, in other embodiments the BOPs 11 are removed and the slip bowl assembly 102 is run into the wellhead without passing through the BOPs 11.
  • the method continues with applying force on the running tool 100 from above, which forces the inner sleeve 106 downward with respect to the outer sleeve 110 (e.g., with pins 108 moving downward within the grooves 109), thereby shearing the shear pins 112.
  • downward movement of the inner sleeve 106 or gravity causes the slip segments 120 to slide down from the running position to the setting position in contact with the casing 126.
  • the method continues (at 146) with putting tension on the casing 126 to a desired hanging weight to facilitate gripping of the casing with the slip segments 120.
  • the method concludes with removing the running tool 100, such as by rotating the running tool 100 to disengage the retainer screws 114 from the retaining slots 118 and then lifting the running tool 100 out of the wellhead through the one or more BOPs 11.

Abstract

L'invention concerne des ensembles coins qui peuvent être utilisés pour la préhension de tuyaux, ainsi que des outils de pose destinés à l'installation de tels ensembles coinq. Dans un mode de réalisation, un appareil comprend un ensemble coins de retenue ("slip bowl") comportant un coin de retenue (116) et une pluralité de segments de coin (120) fixés de façon mobile sur le coin de retenue à des fins de déplacement entre une position de réglage et une position de fonctionnement. L'appareil comprend également un outil de pose (100) comportant un manchon intérieur (106) positionné à l'intérieur d'un manchon extérieur (110). Le manchon extérieur maintient la pluralité de segments de coin dans la position de fonctionnement pour faciliter l'installation de l'ensemble coins de retenue et le manchon intérieur est conçu pour se déplacer par rapport au manchon extérieur de façon à provoquer le déplacement de la pluralité de segments de coin de la position de fonctionnement à la position de réglage. L'invention concerne en outre des systèmes, des dispositifs et des procédés additionnels.
PCT/US2017/057838 2016-10-24 2017-10-23 Appareil et procédé de mise en place et réglage d'un ensemble coins WO2018080978A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17865234.3A EP3529455A4 (fr) 2016-10-24 2017-10-23 Appareil et procédé de mise en place et réglage d'un ensemble coins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/332,434 US20180112479A1 (en) 2016-10-24 2016-10-24 Apparatus and method for landing and setting slip assembly
US15/332,434 2016-10-24

Publications (1)

Publication Number Publication Date
WO2018080978A1 true WO2018080978A1 (fr) 2018-05-03

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ID=61969465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/057838 WO2018080978A1 (fr) 2016-10-24 2017-10-23 Appareil et procédé de mise en place et réglage d'un ensemble coins

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Country Link
US (1) US20180112479A1 (fr)
EP (1) EP3529455A4 (fr)
WO (1) WO2018080978A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299954A (en) * 1963-05-28 1967-01-24 Cameron Iron Works Inc Method and apparatus for hanging a well casing in a well bore
US3398795A (en) * 1965-08-16 1968-08-27 Otis Eng Co Retrievable well packers
US4982795A (en) * 1988-11-07 1991-01-08 Cooper Industries, Inc. Method and apparatus for supporting one tubular member within another
US5287922A (en) * 1991-12-13 1994-02-22 Abb Vetco Gray Inc. Emergency method for running slips over casing collars
US20030188876A1 (en) * 2002-04-04 2003-10-09 Vick Michael Lee Spring wire composite corrosion resistant anchoring device
US20080210063A1 (en) * 2005-05-03 2008-09-04 Noetic Engineering Inc. Gripping Tool
US20100038096A1 (en) * 2006-11-15 2010-02-18 Reimert Larry E Downhole Tool with Slip Releasing Mechanism

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2435661B (en) * 2004-01-29 2008-10-15 Cooper Cameron Corp Through bore wellhead hanger system
US8978772B2 (en) * 2011-12-07 2015-03-17 Vetco Gray Inc. Casing hanger lockdown with conical lockdown ring

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299954A (en) * 1963-05-28 1967-01-24 Cameron Iron Works Inc Method and apparatus for hanging a well casing in a well bore
US3398795A (en) * 1965-08-16 1968-08-27 Otis Eng Co Retrievable well packers
US4982795A (en) * 1988-11-07 1991-01-08 Cooper Industries, Inc. Method and apparatus for supporting one tubular member within another
US5287922A (en) * 1991-12-13 1994-02-22 Abb Vetco Gray Inc. Emergency method for running slips over casing collars
US20030188876A1 (en) * 2002-04-04 2003-10-09 Vick Michael Lee Spring wire composite corrosion resistant anchoring device
US20080210063A1 (en) * 2005-05-03 2008-09-04 Noetic Engineering Inc. Gripping Tool
US20100038096A1 (en) * 2006-11-15 2010-02-18 Reimert Larry E Downhole Tool with Slip Releasing Mechanism

Also Published As

Publication number Publication date
EP3529455A1 (fr) 2019-08-28
US20180112479A1 (en) 2018-04-26
EP3529455A4 (fr) 2020-05-27

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