GB1231376A - - Google Patents


Publication number
GB1231376A GB1231376DA GB1231376A GB 1231376 A GB1231376 A GB 1231376A GB 1231376D A GB1231376D A GB 1231376DA GB 1231376 A GB1231376 A GB 1231376A
United Kingdom
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Priority to US77840468A priority Critical
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Publication of GB1231376A publication Critical patent/GB1231376A/en
Expired legal-status Critical Current



    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/02Surface sealing or packing
    • E21B33/03Well heads; Setting-up thereof
    • E21B33/04Casing heads; Suspending casings or tubings in well heads
    • E21B33/043Casing heads; Suspending casings or tubings in well heads specially adapted for underwater well heads


1,231,376. Wells &c. VETCO OFFSHORE INDUSTRIES Inc. 10 Sept., 1969 [25 Nov., 1968], No. 44705/69. Heading E1F. A casing hanger 10 is lowered into, and seated in, a casing head D on a running tool C, the hanger and a packing and locking assembly 46 being releasably secured to the tool by dogs 11, 71 respectively. A dart (111, Fig. 2a not shown) is seated in the bore 101 of the tool, and fluid is directed to a chamber 36 to raise a sleeve 21 and release the hanger. The tool is lowered, to shift packing 55, 54, 56 of the assembly into annulus 105 between the head and hanger, and to cause the hanger extension 83 to retract dogs 71 from the assembly. Further downward movement of the tool brings hanger locking dogs 57 on the assembly opposite a groove 62 in the head and forces a lock sleeve 47 to urge dogs 57 into the groove and compress the packing against a seat 118 on the hanger to seal the annulus 105. Blow out preventers (not shown) are closed and fluid is supplied to the annulus 110 to move the tool downwardly to force dogs 57 further into the groove and further compress the packing. As the hanger it fixedly set the tool is removed. If the setting of the hanger is not successful the assembly 46 is removed by a tool which engages grooves 48 on the sleeve 47. After the hanger has been lowered into the well and prior to setting, the casing E supported by the hanger is cemented, cement passing upwardly through ducts 102 in the hanger, annulus 103, slots 104 in the hanger, annulus 105, holes 108 in the hanger and passages 69 in the tool. The arrangement is suitable for sub-aqueous wells.
GB1231376D 1968-11-25 1969-09-10 Expired GB1231376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US77840468A true 1968-11-25 1968-11-25

Publications (1)

Publication Number Publication Date
GB1231376A true GB1231376A (en) 1971-05-12



Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231376D Expired GB1231376A (en) 1968-11-25 1969-09-10

Country Status (4)

Country Link
US (1) US3543847A (en)
DE (1) DE1950255B2 (en)
FR (1) FR2024116A1 (en)
GB (1) GB1231376A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256664A (en) * 1991-05-29 1992-12-16 Seaboard Lloyd Ltd Hanger lock
GB2517784A (en) * 2013-09-02 2015-03-04 Plexus Holdings Plc Running tool

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3710859A (en) * 1970-05-27 1973-01-16 Vetco Offshore Ind Inc Apparatus for remotely connecting and disconnecting pipe lines to and from a submerged wellhead
US3870104A (en) * 1973-05-14 1975-03-11 Hydril Co Subsurface safety valve well tool operable by differential annular pressure
US3844346A (en) * 1973-05-14 1974-10-29 Hydril Co Subsurface safety valve well tool operable by differential annular pressure
US3885625A (en) * 1974-02-07 1975-05-27 Vetco Offshore Ind Inc Well casing running, cementing and flushing apparatus
US4008898A (en) * 1974-06-19 1977-02-22 Cameron Iron Works, Inc. Well apparatus
US3920071A (en) * 1974-06-19 1975-11-18 Cameron Iron Works Inc Well apparatus
US3924678A (en) * 1974-07-15 1975-12-09 Vetco Offshore Ind Inc Casing hanger and packing running apparatus
US3897823A (en) * 1974-08-05 1975-08-05 Vetco Offshore Ind Inc Rotatably releasable casing hanger and packing running apparatus
US3933202A (en) * 1974-10-21 1976-01-20 Vetco Offshore Industries, Inc. Apparatus for setting and locking packing assemblies in wellheads
US4019580A (en) * 1975-05-02 1977-04-26 Fmc Corporation Apparatus and method for running, setting and testing a compression-type well packoff
US3999604A (en) * 1975-07-21 1976-12-28 Otis Engineering Corporation Rotation release two-way well casing hanger
CA1057653A (en) * 1976-04-29 1979-07-03 Edmund M. Mouret Hydraulic operated casing hanger running tool
US4067062A (en) * 1976-06-11 1978-01-10 Vetco Offshore Industries, Inc. Hydraulic set tubing hanger
US4171018A (en) * 1978-03-20 1979-10-16 Deep Oil Technology, Inc. Tubing hanger assembly and method of landing and locking
US4290483A (en) * 1980-02-11 1981-09-22 Armco Inc. Latch means for well tools and components
US4353420A (en) * 1980-10-31 1982-10-12 Cameron Iron Works, Inc. Wellhead apparatus and method of running same
US4418750A (en) * 1981-10-13 1983-12-06 Otis Engineering Corporation Well tool
US4615544A (en) * 1982-02-16 1986-10-07 Smith International, Inc. Subsea wellhead system
US4488740A (en) * 1982-02-19 1984-12-18 Smith International, Inc. Breech block hanger support
US4564068A (en) * 1983-11-22 1986-01-14 Smith International, Inc. Emergency release for subsea tool
US4548273A (en) * 1983-11-22 1985-10-22 Smith International, Inc. Torque multiplier subsea tool
US4757860A (en) * 1985-05-02 1988-07-19 Dril-Quip, Inc. Wellhead equipment
US4691780A (en) * 1985-06-03 1987-09-08 Cameron Iron Works, Inc. Subsea wellhead structure
US4699215A (en) * 1986-08-18 1987-10-13 Hughes Tool Company External tie-back connector
US4736799A (en) * 1987-01-14 1988-04-12 Cameron Iron Works Usa, Inc. Subsea tubing hanger
US4811784A (en) * 1988-04-28 1989-03-14 Cameron Iron Works Usa, Inc. Running tool
US4836288A (en) * 1988-05-11 1989-06-06 Fmc Corporation Casing hanger and packoff running tool
US4969519A (en) * 1989-06-28 1990-11-13 Cooper Industries, Inc. Subsea hanger and running tool
GB8918844D0 (en) * 1989-08-18 1989-09-27 Shell Int Research Wellhead assembly
EP0421037B1 (en) * 1989-10-06 1995-03-01 Cooper Industries, Inc. Hydraulic/torsion packoff installation tool and method of using same
US5080174A (en) * 1991-01-14 1992-01-14 Cooper Industries, Inc. Hydraulic packoff and casing hanger installation tool
US5247997A (en) * 1992-04-10 1993-09-28 Cooper Industries, Inc. Tubing hanger with a preloaded lockdown
US5273117A (en) * 1992-06-22 1993-12-28 Dril-Quip, Inc. Subsea wellhead equipment
US5503230A (en) * 1994-11-17 1996-04-02 Vetco Gray Inc. Concentric tubing hanger
GB9603677D0 (en) * 1996-02-21 1996-04-17 Ocre Scotland Ltd Downhole apparatus
US6302211B1 (en) 1998-08-14 2001-10-16 Abb Vetco Gray Inc. Apparatus and method for remotely installing shoulder in subsea wellhead
GB2362906B (en) * 2000-05-26 2004-09-22 Vetco Gray Inc Abb Small diameter external production riser tieback connector
US6550537B1 (en) * 2001-03-14 2003-04-22 Kugerner Oilfield Products, Inc. Tension latching system
US7040412B2 (en) * 2002-09-30 2006-05-09 Dril-Quip, Inc. Adjustable hanger system and method
US7231970B2 (en) * 2003-07-30 2007-06-19 Cameron International Corporation Non-rotational casing hanger and seal assembly running tool
JP2007061485A (en) * 2005-09-01 2007-03-15 Tomy Co Ltd Support base for bathing
US7445050B2 (en) * 2006-04-25 2008-11-04 Canrig Drilling Technology Ltd. Tubular running tool
US7552764B2 (en) * 2007-01-04 2009-06-30 Nabors Global Holdings, Ltd. Tubular handling device
WO2009120935A2 (en) * 2008-03-28 2009-10-01 Cameron International Corporation Wellhead hanger shoulder
US8720541B2 (en) 2008-06-26 2014-05-13 Canrig Drilling Technology Ltd. Tubular handling device and methods
US8074711B2 (en) 2008-06-26 2011-12-13 Canrig Drilling Technology Ltd. Tubular handling device and methods
EP2690250A1 (en) * 2010-02-17 2014-01-29 Cameron International Corporation Running tool with independent housing rotation sleeve
GB2484298A (en) * 2010-10-05 2012-04-11 Plexus Ocean Syst Ltd Subsea wellhead with adjustable hanger forming an annular seal
US9376881B2 (en) * 2012-03-23 2016-06-28 Vetco Gray Inc. High-capacity single-trip lockdown bushing and a method to operate the same
US9822601B2 (en) * 2014-08-01 2017-11-21 Cameron International Corporation System for setting and retrieving a seal assembly
US10077620B2 (en) * 2014-09-26 2018-09-18 Cameron International Corporation Load shoulder system
US10161210B2 (en) * 2014-12-22 2018-12-25 Cameron International Corporation Hydraulically actuated wellhead hanger running tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256664A (en) * 1991-05-29 1992-12-16 Seaboard Lloyd Ltd Hanger lock
GB2517784A (en) * 2013-09-02 2015-03-04 Plexus Holdings Plc Running tool
US10287838B2 (en) 2013-09-02 2019-05-14 Plexus Holdings, Plc. Running tool

Also Published As

Publication number Publication date
US3543847A (en) 1970-12-01
FR2024116A1 (en) 1970-08-28
DE1950255B2 (en) 1975-10-30
DE1950255A1 (en) 1970-06-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee