GB1266558A - - Google Patents

Info

Publication number
GB1266558A
GB1266558A GB1266558DA GB1266558A GB 1266558 A GB1266558 A GB 1266558A GB 1266558D A GB1266558D A GB 1266558DA GB 1266558 A GB1266558 A GB 1266558A
Authority
GB
United Kingdom
Prior art keywords
heading
wells
aug
oct
differ
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
Other languages
English (en)
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 GB1266558A publication Critical patent/GB1266558A/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)
GB1266558D 1968-10-04 1969-08-08 Expired GB1266558A (xx)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1266558A true GB1266558A (xx) 1972-03-15

Family

ID=25072543

Family Applications (2)

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

Family Applications After (1)

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

Country Status (3)

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

Families Citing this family (25)

* 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
US3915425A (en) * 1973-01-22 1975-10-28 Hydril Co Blowout preventer with variable inside diameter
US3897038A (en) * 1973-01-22 1975-07-29 Hydril Co Blowout preventer with variable inside diameter
US3915426A (en) * 1973-01-26 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
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
US8540017B2 (en) 2010-07-19 2013-09-24 National Oilwell Varco, L.P. Method and system for sealing a wellbore
US8544538B2 (en) 2010-07-19 2013-10-01 National Oilwell Varco, L.P. System and method for sealing a wellbore
KR20150092371A (ko) 2011-03-09 2015-08-12 내셔널 오일웰 바르코 엘.피. 유정 보어를 밀봉하기 위한 방법 및 장치
GB201107459D0 (en) * 2011-05-05 2011-06-15 Nat Oilwell Varco Uk Ltd Seal
US10316607B2 (en) 2014-12-17 2019-06-11 Managed Pressure Operations Pte. Ltd. Pressure containment devices
US10161212B2 (en) * 2015-11-24 2018-12-25 Cameron International Corporation Packer assembly with multiple different inserts for blowout preventer
GB2567942B (en) * 2016-03-30 2019-12-11 Electrical Subsea & Drilling As 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

Also Published As

Publication number Publication date
MY7400067A (en) 1974-12-31
GB1266556A (xx) 1972-03-15
US3572628A (en) 1971-03-30
MY7400064A (en) 1974-12-31

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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