GB1266556A - - Google Patents

Info

Publication number
GB1266556A
GB1266556A GB1266556DA GB1266556A GB 1266556 A GB1266556 A GB 1266556A GB 1266556D A GB1266556D A GB 1266556DA GB 1266556 A GB1266556 A GB 1266556A
Authority
GB
United Kingdom
Prior art keywords
annulus
flanges
extend
constricted
web
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.)
Expired
Application number
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 filed Critical
Publication of GB1266556A publication Critical patent/GB1266556A/en
Expired legal-status Critical Current

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
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/06—Blow-out preventers, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Superconductive Dynamoelectric Machines (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Bridges Or Land Bridges (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

1,266,556. Wells &c. CAMERON IRON WORKS Inc. 8 Aug., 1969 [4 Oct., 1968], No. 39895/69. Heading E1F. A blowout preventer comprises a housing 21, and an annulus 33 of deformable material having rigid inserts 41. Each insert has flanges 43 and a web 42, the sides of the web lying in planes of least strain in the material as the annulus is radially constricted. As shown slots extend between the flanges of adjacent inserts and the annulus has annular projections 44 radially outside of the flanges. In modifications the flanges extend to the outer edges of the annulus and the projections extend over the flanges. The annulus is constricted by segments 36 carried by radial pistons 63. Passages 39 permit well pressure to act on the outer side of the annulus.
GB1266556D 1968-10-04 1969-08-08 Expired GB1266556A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76506668A 1968-10-04 1968-10-04

Publications (1)

Publication Number Publication Date
GB1266556A true GB1266556A (en) 1972-03-15

Family

ID=25072543

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1266558D Expired GB1266558A (en) 1968-10-04 1969-08-08
GB1266556D Expired GB1266556A (en) 1968-10-04 1969-08-08

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1266558D Expired GB1266558A (en) 1968-10-04 1969-08-08

Country Status (3)

Country Link
US (1) US3572628A (en)
GB (2) GB1266558A (en)
MY (2) MY7400067A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316607B2 (en) 2014-12-17 2019-06-11 Managed Pressure Operations Pte. Ltd. Pressure containment devices

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897039A (en) * 1971-10-20 1975-07-29 Hydril Co Variable inside diameter blowout preventer
US3897071A (en) * 1972-04-27 1975-07-29 Hydril Co Annular blowout preventer with variable inside diameter
US3897038A (en) * 1973-01-22 1975-07-29 Hydril Co Blowout preventer with variable inside diameter
US3915425A (en) * 1973-01-22 1975-10-28 Hydril Co Blowout preventer with variable inside diameter
US3915424A (en) * 1973-01-26 1975-10-28 Hydril Co Blowout preventer with variable inside diameter
US3915426A (en) * 1973-01-26 1975-10-28 Hydril Co Blowout preventer with variable inside diameter
US3897040A (en) * 1973-05-11 1975-07-29 Hydril Co Annular blowout preventer with variable inside diameter
US4007904A (en) * 1975-03-28 1977-02-15 Cameron Iron Works, Inc. Annular blowout preventer
US4098516A (en) * 1977-08-15 1978-07-04 Hydril Company Blowout preventer packing unit with slanted reinforcing inserts
US4310139A (en) * 1980-04-04 1982-01-12 Cameron Iron Works, Inc. Annular blowout preventer
US4332367A (en) * 1980-05-02 1982-06-01 Nl Industries, Inc. Blowout preventer having a variable ram seal
US4460149A (en) * 1980-06-05 1984-07-17 Nl Industries, Inc. Annular blowout preventer with upper and lower spherical sealing surfaces
US4460151A (en) * 1981-12-29 1984-07-17 Cameron Iron Works, Inc. Annular blowout preventer
US4508311A (en) * 1982-11-12 1985-04-02 Cameron Iron Works, Inc. Annular blowout preventer
US4830334A (en) * 1988-10-03 1989-05-16 Welker Robert H Resilient plug construction for a flow regulator incorporating stress limiting means
US5064164A (en) * 1990-08-16 1991-11-12 Baroid Technology, Inc. Bop seal with improved metal inserts
CA2311036A1 (en) 2000-06-09 2001-12-09 Oil Lift Technology Inc. Pump drive head with leak-free stuffing box, centrifugal brake and polish rod locking clamp
US8844898B2 (en) * 2009-03-31 2014-09-30 National Oilwell Varco, L.P. Blowout preventer with ram socketing
US8544538B2 (en) 2010-07-19 2013-10-01 National Oilwell Varco, L.P. System and method for sealing a wellbore
US8540017B2 (en) 2010-07-19 2013-09-24 National Oilwell Varco, L.P. Method and system for sealing a wellbore
NO2683912T3 (en) 2011-03-09 2018-01-20
GB201107459D0 (en) * 2011-05-05 2011-06-15 Nat Oilwell Varco Uk Ltd Seal
US10161212B2 (en) * 2015-11-24 2018-12-25 Cameron International Corporation Packer assembly with multiple different inserts for blowout preventer
AU2017244287B2 (en) * 2016-03-30 2022-08-04 Electrical Subsea & Drilling Annular blowout preventer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1708261A (en) * 1926-05-28 1929-04-09 Alvin B Crowell Automatic vacuum-sealing device
US1963683A (en) * 1929-04-01 1934-06-19 William D Shaffer Means for closing off flow between well casings and inside tubings
US2609836A (en) * 1946-08-16 1952-09-09 Hydril Corp Control head and blow-out preventer
US2812197A (en) * 1955-08-16 1957-11-05 Shaffer Tool Works Toggle packer, well head preventer
US2855172A (en) * 1956-04-06 1958-10-07 Cameron Iron Works Inc Blowout preventer and ram therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316607B2 (en) 2014-12-17 2019-06-11 Managed Pressure Operations Pte. Ltd. Pressure containment devices

Also Published As

Publication number Publication date
MY7400064A (en) 1974-12-31
US3572628A (en) 1971-03-30
MY7400067A (en) 1974-12-31
GB1266558A (en) 1972-03-15

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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