EP0535277A1 - Dispositif de suspension de tubes pour tête de puits - Google Patents

Dispositif de suspension de tubes pour tête de puits Download PDF

Info

Publication number
EP0535277A1
EP0535277A1 EP91309001A EP91309001A EP0535277A1 EP 0535277 A1 EP0535277 A1 EP 0535277A1 EP 91309001 A EP91309001 A EP 91309001A EP 91309001 A EP91309001 A EP 91309001A EP 0535277 A1 EP0535277 A1 EP 0535277A1
Authority
EP
European Patent Office
Prior art keywords
hanger
tubing
locking
ring
spool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91309001A
Other languages
German (de)
English (en)
Other versions
EP0535277B1 (fr
Inventor
Edward Thomas Thornburrow
Neil Francis Frazer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cameron International Corp
Original Assignee
Cooper Industries LLC
Cooper Cameron Corp
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 Cooper Industries LLC, Cooper Cameron Corp filed Critical Cooper Industries LLC
Priority to EP19910309001 priority Critical patent/EP0535277B1/fr
Priority to DE1991617510 priority patent/DE69117510T2/de
Publication of EP0535277A1 publication Critical patent/EP0535277A1/fr
Application granted granted Critical
Publication of EP0535277B1 publication Critical patent/EP0535277B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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

Definitions

  • the tubing string, suspended from a landing string is run in down through the casing assembly, which has previously been cemented in the bore.
  • the tubing string is run in until the tubing hanger at the upper end of the tubing string lands in a tubing spool, which is stacked at the wellhead on casing spools.
  • the tubing hanger is then conventionally locked down to the tubing spool by a ring of tie down screws, which are screwed radially in through the wall of the tubing spool until the tips of the screws engage in an annular groove in the tubing hanger.
  • control line from a source of hydraulic pressure external of the wellhead down to a subsurface safety valve within the tubing some distance below the surface.
  • the valve is held open by hydraulic pressure applied through the control line but in the event of a catastrophe causing pressure loss in the control line, the valve is automatically closed to isolate the tubing below the valve.
  • Conventionally such control line is a flexible metal pipe of nominal quarter inch external diameter, which is strapped to the outside of the tubing and lowered and raised with the tubing string.
  • the control line In order to pass to the outside of the wellhead without interrupting the annular seal at the top of the annulus between the tubing and inner casing, the control line has been coupled at its upper end to the lower end of an axial bore extending up through the wall of the tubing hanger, and hence through a radial branch to a passageway in the hanger spool via an interface seal between two annular sealing rings interposed between the spool and hanger.
  • the coupling between the upper end of the tubing and the bore in the tubing hanger is a further potential source of failure such that if it became inadvertently disconnected, the pressure loss in the control line would unnecessarily close the subsurface safety valve and involve an unnecessary and costly interruption in the operation of the well.
  • control line be a continuous tube which passes through a bore extending from axial end to end through the wall of the tubing hanger.
  • the extra length of control line tubing above the hanger has had to be coiled helically in the of the hanger or accommodated alongside the landing string.
  • the tubing interferes with the application of the rotary tool to set the hanger locking means and two tools have had to be used in turn, one to run in the tubing string and the other to set the locking means.
  • the object of the present invention is to enable the suspension of a tubing string with a continuous control line upon completion of a wellhead using a hanger which is secured in the spool by locking means set by rotation of a locking ring on the hanger body and a single tool both for running in and for rotating the locking ring.
  • this object is achieved by providing a tubing spool which is arranged to be stacked in conventional manner in a wellhead, and a tubing hanger which is arranged to be suspended in the spool, for example by means of a conventional tapered landing shoulder.
  • the hanger body is provided with a passageway extending from axial end to end through the wall thereof for accommodating a continuous control line for a subsurface safety valve.
  • Locking means such as lugs or a split ring located in a locking groove in the hanger, for locking the hanger to the spool, are set by a locking ring which is rotatable around the hanger body, particularly screwed down on the hanger body.
  • the tubing string is run in and the locking means is set by means of a special running tool which suspends the hanger and tubing string from the conventional landing string.
  • the running tool comprises radially inner, radially central and radially outer, mutually rotatable, coaxial sleeves.
  • the radially outer sleeve is provided with an inner ring gear and at its lower end is releasably connectable, for example by means of at least one pin and J-slot, to the hanger locking ring for transmission of torque to the locking ring.
  • the radially central sleeve is provided with a ring of planetary pinions in mesh with the ring gear, with a passageway extending from axial end to end through the wall of the radially central sleeve for accommodating the continuous control line for the subsurface safety valve, and, at its lower end is releasable keyable to the hanger body to prevent mutual rotation about the tubing axis.
  • the radially inner sleeve is formed in mutually sealed, upper and lower telescopic parts, the lower part being releasably connected at its lower end to the hanger body for supporting the tubing string, and the upper part being arranged to be secured, in use, to the landing string, the upper and lower parts having means, such as inter-engaging dogs, for transmitting rotation therebetween when they are telescopically extended but not when they are telescopically retracted, and the upper part having an external sun gear which meshes with the planetary pinions when the upper and lower parts are telescopically retracted but not when they are telescopically extended.
  • the running tool suspended from the landing string, is lowered on to the hanger, and the lower end of the central sleeve of the tool is keyed to the hanger body.
  • the landing string has not been over lowered, so that the weight of the tool maintains the telescopic inner sleeve parts of the tool extended and there is direct rotational drive between the parts.
  • the landing string is then rotated to secure the lower part of the inner sleeve of the tool to the hanger body, most conveniently by screwing the lower end of the lower part of the inner sleeve to the usual landing thread at the upper end of the hanger body.
  • the outer sleeve of the tool is then manipulated by hand to engage the outer sleeve of the tool with the hanger locking ring. If one or more pin and J-slots are utilised, the or each pin will be manipulated into the closed end of the respective J-slot.
  • the tubing string is then run in until the hanger lands in the spool.
  • the landing string is lowered slightly to cause retraction of the inner sleeve parts of the running tool so that the sun gear comes into engagement with the pinions.
  • the running tool is thus in a configuration to act as a planetary gear. Rotation of the landing string will then cause rotation of the upper inner sleeve part and, via the pinions, the outer sleeve of the running tool so that the locking ring of the hanger is rotated to set the locking means. At this time no rotation is transmitted to the lower inner sleeve part.
  • the landing string is raised to tension the running tool and extend the upper and lower inner sleeve parts so that the sun gear moves axially out of engagement with the pinions and the dogs or other means re-engage.
  • Rotation of the landing string is then transmitted not to the outer sleeve but to the lower inner sleeve part to disconnect this from the hanger body.
  • the releasable connection between the lower end of the outer sleeve and the hanger locking ring is now releasable by axial movement, for example as a result of the pin or pins being in the bottom of the open lengths of the respective J-slot, the landing string and running tool can be withdrawn out of engagement with the hanger.
  • the landing string always rotates in the same direction both to pick up the hanger and to engage the locking means, as is conventional, if the connection between the lower inner sleeve part and the hanger body is a screw threaded connection, and if the hanger locking ring is screwed down the hanger body to set the locking means, the two screw threads will need to be of different hand since the planetary pinions will reverse the direction of drive from the upper inner sleeve part to the outer sleeve.
  • the running tool can be drawn upwardly with the landing string, the radially central sleeve of the running tool stripping up over the continuous control line.
  • a spool and hanger assembly for use in suspending a tubing string upon completion of a wellhead comprising a tubing spool having a bore, a tubing hanger which is arranged to be received in the bore, the hanger being provided with a passageway extending from axial end to end through the wall thereof for accommodating a continuous control line for a subsurface safety valve, locking means for locking the hanger to the spool; a locking ring which is rotatable around a body of the hanger for setting the locking means; the hanger body being provided with means for releasable connection to a running tool for supporting, in use, the tubing string, and with means for releasable keying to a part of the tool to prevent mutual rotation therebetween; and the hanger locking ring being provided with means for releasable connection to a part of the tool for transmission of torque to rotate the locking ring also forms a further independent aspect of the invention.
  • the illustrated equipment includes a tubing spool 3, which is arranged to be stacked on casing spools and connected to adjacent spools and conventional valving by means of flanges 4 and 5 and stud bolts 6.
  • the inner bore 7 of the spool is provided with an annular tapered landing shoulder 8 and an annular locking groove 9.
  • the spool is arranged to suspend a tubing string consisting of a tubing hanger 10 and tubing 11.
  • a tubing hanger 10 When the hanger is landed in the spool, the landing shoulder 8 is engaged by a ring 12, which is slidable up the hanger body under the string weight to energise a seal 13 into sealing engagement between the spool and hanger.
  • the tubing string is arranged to be run in and secured by means of a running tool which is suspended from a landing string 14 and which is shown more clearly in Figure 2.
  • the tool consists of three mutually rotatable and axially slidable sleeves consisting of a radially outer sleeve 15, a radially central sleeve 16, and a radially inner sleeve formed by an upper part 17 and a lower part formed of sub parts 18 and 19 which are securely fixed together by a screw thread 20 and pins 21.
  • the upper and lower inner sleeve parts 17;18,19 are telescopically slidable relatively to one another between an extended position shown on the left-hand side of Figure 2, and retracted position shown on the right-hand side of Figure 2.
  • a ring of vent holes 18A assists movement upon change in volume in the closed annular space between the inner sleeve parts.
  • the two parts are guided relatively to one another by means of bearing rings 22 and are sealed relatively to one another by means of an annular sealing ring 23.
  • dogs 24 on the two inner sleeve parts engage one another so that torque is transmitted from one part to the other.
  • the dogs 24 are separated so that torque cannot be transmitted between the parts.
  • the lower inner sleeve part has a nose 25 which is externally screw threaded and arranged to screw into a landing thread 26 in the upper part of the hanger 10.
  • the screw threads could be inverted so that that on the lower inner sleeve part is an internal thread.
  • the central sleeve part 16 of the tool is provided at its lower end with downwardly projecting fingers 27 which engage in complementary axial keyways 27A in the side wall of the body of the hanger 10 to prevent relative rotation between that sleeve and the hanger.
  • the central sleeve 16 is also provided with a ring of planetary pinions 28, each of which projects both outwardly and inwardly of the sleeve wall.
  • the pinions are clear of a sun gear 29 which is fixed on the upper inner sleeve part 17, but engage the sun gear when the inner sleeve parts are retracted as shown on the right-hand side of the Figures.
  • the central sleeve 16 is also provided with a passageway 30 extending from end to end in its wall to accommodate a continuous control line 31, which also passes up through a similar passageway 32 extending from end to end through the wall of the hanger 10.
  • the outer sleeve 15 of the tool is provided on its inner surface with a ring gear 33 which is continually in mesh with the pinions 28, and at its lower end with a pair of diametrically opposed inwardly projecting pins 34. These pins engage in J-slots 35 formed in a locking ring 36 which is screwed by means of inter-engaging screw threads 37 on to the outside of the hanger 10.
  • the ring 36 has a tapered nose 38, which, upon screwing down of the ring, wedges behind a split ring 39, located in an annular locking groove 40 in the wall of the hanger, to expand the ring partly into the locking groove 9.
  • the tubing string 11 is run in and secured, supported in slips, and the tubing hanger 10 attached.
  • the tool is lowered and the fingers 27 are introduced into their complementary keyways 27A in the hanger 10.
  • the landing string is then lowered slightly but without releasing tension in the tool, and is rotated, for example, clockwise to engage the nose 25 in the socket 26.
  • the outer sleeve 15 of the tool is then manipulated by hand so that the pins 34 enter the J-slots 35 and are moved to the closed ends of the slots.
  • the tubing string is then unslipped and lowered fully into the spool, until the hanger makes a landing.
  • the landing string is lowered further to retract the inner sleeve parts of the tool, thereby disengaging the dogs 24, and bringing the sun gear 29 into mesh with the pinions 28.
  • the locking string is then rotated in the same clockwise direction so that the pins 34 move across the bottoms of the J-slots and then rotate the locking ring 36 so that this is screwed down to expand the ring 39 and lock the hanger in the spool.
  • the screw thread 37 is of a different hand to that between the nose 25 and socket 26.
  • the landing string is raised slightly to extend the inner sleeve parts of the tools thereby reengaging the dogs 24 and disconnecting the sun gear 29 from the pinions 28.
EP19910309001 1991-10-01 1991-10-01 Dispositif de suspension de tubes pour tête de puits Expired - Lifetime EP0535277B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19910309001 EP0535277B1 (fr) 1991-10-01 1991-10-01 Dispositif de suspension de tubes pour tête de puits
DE1991617510 DE69117510T2 (de) 1991-10-01 1991-10-01 Rohraufhängungsvorrichtung für einen Bohrlochkopf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19910309001 EP0535277B1 (fr) 1991-10-01 1991-10-01 Dispositif de suspension de tubes pour tête de puits

Publications (2)

Publication Number Publication Date
EP0535277A1 true EP0535277A1 (fr) 1993-04-07
EP0535277B1 EP0535277B1 (fr) 1996-02-28

Family

ID=8208409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910309001 Expired - Lifetime EP0535277B1 (fr) 1991-10-01 1991-10-01 Dispositif de suspension de tubes pour tête de puits

Country Status (2)

Country Link
EP (1) EP0535277B1 (fr)
DE (1) DE69117510T2 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383519A (en) * 1993-08-04 1995-01-24 569396 Alberta Ltd. Apparatus for rotating a tubing string of a pumping wellhead
US5465788A (en) * 1995-01-31 1995-11-14 569,396 Alberta Ltd. Tubing string hanging apparatus
US6026898A (en) * 1997-07-11 2000-02-22 Campbell Industries Ltd. Integral tubing head and rotator
US6543533B2 (en) 2001-03-02 2003-04-08 Duhn Oil Tool, Inc. Well tubing rotator
US6588510B2 (en) 2001-09-17 2003-07-08 Duhn Oil Tool, Inc. Coil tubing hanger system
EP1606074A2 (fr) * 2003-01-30 2005-12-21 Smith International, Inc. Soudage par friction malaxage hors position d'alliages a haute temperature de fusion
WO2010096218A1 (fr) * 2009-02-17 2010-08-26 Cameron International Corporation Système de fermeture et de suspension à autoverrouillage pour forage à diamètre réduit, système à déploiement en une seule manœuvre et outil récupérable
EP2357315A1 (fr) * 2010-02-17 2011-08-17 Cameron International Corporation Outil de pose avec manchon de rotation à boîtier indépendant
WO2015134145A1 (fr) * 2014-03-04 2015-09-11 Cameron International Corporation Système et procédé de mise en oeuvre d'un outil de pose destiné à une olive de suspension pour colonne de production
US9242308B2 (en) 2009-11-02 2016-01-26 Megastir Technologies Llc Out of position friction stir welding of casing and small diameter tubing or pipe
EP2248990A3 (fr) * 2009-04-29 2017-04-05 Vetco Gray Inc. Système de tête de puits doté d'une suspension tubulaire sécurisable sur la tête de puits et procédé de fonctionnement
US11459840B2 (en) * 2016-12-27 2022-10-04 Cameron International Corporation Tubing hanger running tool systems and methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972546A (en) * 1974-03-11 1976-08-03 Norman A. Nelson Locking assembly and a seal assembly for a well
EP0343298A2 (fr) * 1988-04-28 1989-11-29 Cooper Industries, Inc. Outil de descente

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972546A (en) * 1974-03-11 1976-08-03 Norman A. Nelson Locking assembly and a seal assembly for a well
EP0343298A2 (fr) * 1988-04-28 1989-11-29 Cooper Industries, Inc. Outil de descente

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5383519A (en) * 1993-08-04 1995-01-24 569396 Alberta Ltd. Apparatus for rotating a tubing string of a pumping wellhead
US5465788A (en) * 1995-01-31 1995-11-14 569,396 Alberta Ltd. Tubing string hanging apparatus
US6026898A (en) * 1997-07-11 2000-02-22 Campbell Industries Ltd. Integral tubing head and rotator
US6543533B2 (en) 2001-03-02 2003-04-08 Duhn Oil Tool, Inc. Well tubing rotator
US6588510B2 (en) 2001-09-17 2003-07-08 Duhn Oil Tool, Inc. Coil tubing hanger system
EP1606074A2 (fr) * 2003-01-30 2005-12-21 Smith International, Inc. Soudage par friction malaxage hors position d'alliages a haute temperature de fusion
EP1606074A4 (fr) * 2003-01-30 2008-08-27 Smith International Soudage par friction malaxage hors position d'alliages a haute temperature de fusion
GB2499344A (en) * 2009-02-17 2013-08-14 Cameron Int Corp Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
US9027656B2 (en) 2009-02-17 2015-05-12 Cameron International Corporation Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
US8807229B2 (en) 2009-02-17 2014-08-19 Cameron International Corporation Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
GB2480213A (en) * 2009-02-17 2011-11-09 Cameron Int Corp Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
GB2480213B (en) * 2009-02-17 2013-07-17 Cameron Int Corp Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
WO2010096218A1 (fr) * 2009-02-17 2010-08-26 Cameron International Corporation Système de fermeture et de suspension à autoverrouillage pour forage à diamètre réduit, système à déploiement en une seule manœuvre et outil récupérable
GB2499344B (en) * 2009-02-17 2013-10-09 Cameron Int Corp Positive locked slim hole suspension and sealing system with single trip deployment and retrievable tool
EP2248990A3 (fr) * 2009-04-29 2017-04-05 Vetco Gray Inc. Système de tête de puits doté d'une suspension tubulaire sécurisable sur la tête de puits et procédé de fonctionnement
US9242308B2 (en) 2009-11-02 2016-01-26 Megastir Technologies Llc Out of position friction stir welding of casing and small diameter tubing or pipe
EP2690250A1 (fr) * 2010-02-17 2014-01-29 Cameron International Corporation Outil de pose avec manchon de rotation à logement indépendant
WO2011102877A1 (fr) * 2010-02-17 2011-08-25 Cameron International Corporation Outil de pose comportant un manchon de rotation de logement indépendant
EP2357315A1 (fr) * 2010-02-17 2011-08-17 Cameron International Corporation Outil de pose avec manchon de rotation à boîtier indépendant
US9133679B2 (en) 2010-02-17 2015-09-15 Cameron International Corporation Running tool with independent housing rotation sleeve
US10132132B2 (en) 2010-02-17 2018-11-20 Cameron International Corporation Running tool with independent housing rotation sleeve
WO2015134145A1 (fr) * 2014-03-04 2015-09-11 Cameron International Corporation Système et procédé de mise en oeuvre d'un outil de pose destiné à une olive de suspension pour colonne de production
GB2537310A (en) * 2014-03-04 2016-10-12 Cameron Int Corp Tubing hanger running tool system and method
US9580980B2 (en) 2014-03-04 2017-02-28 Cameron International Corporation Tubing hanger running tool system and method
GB2537310B (en) * 2014-03-04 2021-03-24 Cameron Tech Ltd Tubing hanger running tool system and method
US11459840B2 (en) * 2016-12-27 2022-10-04 Cameron International Corporation Tubing hanger running tool systems and methods

Also Published As

Publication number Publication date
DE69117510T2 (de) 1996-09-12
DE69117510D1 (de) 1996-04-04
EP0535277B1 (fr) 1996-02-28

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