NO811789L - Utblaasnings-forhindrer. - Google Patents

Utblaasnings-forhindrer.

Info

Publication number
NO811789L
NO811789L NO811789A NO811789A NO811789L NO 811789 L NO811789 L NO 811789L NO 811789 A NO811789 A NO 811789A NO 811789 A NO811789 A NO 811789A NO 811789 L NO811789 L NO 811789L
Authority
NO
Norway
Prior art keywords
blowout
prevent
Prior art date
Application number
NO811789A
Other languages
English (en)
Other versions
NO160538C (no
NO160538B (no
Inventor
Gary R Schaeper
Richard A Olson
Original Assignee
Nl Industries Inc
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 Nl Industries Inc filed Critical Nl Industries Inc
Publication of NO811789L publication Critical patent/NO811789L/no
Publication of NO160538B publication Critical patent/NO160538B/no
Publication of NO160538C publication Critical patent/NO160538C/no

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)
  • Actuator (AREA)
  • Earth Drilling (AREA)
  • Sealing Devices (AREA)
  • Safety Valves (AREA)
  • Compressor (AREA)
NO811789A 1980-06-05 1981-05-27 Sikkerhetsventil mot utblaasning. NO160538C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/156,833 US4283039A (en) 1980-06-05 1980-06-05 Annular blowout preventer with upper and lower spherical sealing surfaces

Publications (3)

Publication Number Publication Date
NO811789L true NO811789L (no) 1981-12-07
NO160538B NO160538B (no) 1989-01-16
NO160538C NO160538C (no) 1989-04-26

Family

ID=22561286

Family Applications (1)

Application Number Title Priority Date Filing Date
NO811789A NO160538C (no) 1980-06-05 1981-05-27 Sikkerhetsventil mot utblaasning.

Country Status (10)

Country Link
US (1) US4283039A (no)
JP (1) JPS579993A (no)
AU (1) AU527677B2 (no)
CA (1) CA1157769A (no)
DE (1) DE3122469C2 (no)
FR (1) FR2484012A1 (no)
GB (1) GB2077326B (no)
MX (1) MX155176A (no)
NO (1) NO160538C (no)
SG (1) SG78083G (no)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438900A (en) * 1980-06-05 1984-03-27 Nl Industries, Inc. Locking mechanism for annular blowout preventer
US4460149A (en) * 1980-06-05 1984-07-17 Nl Industries, Inc. Annular blowout preventer with upper and lower spherical sealing surfaces
US4461448A (en) * 1981-06-25 1984-07-24 Hydril Company Well blowout preventer, and packing element
US4452421A (en) * 1981-06-25 1984-06-05 Hydril Company Well blowout preventer, and packing element
US4447037A (en) * 1981-06-25 1984-05-08 Hydril Company Well blowout preventer, and packing element
US4550895A (en) * 1984-09-24 1985-11-05 Shaffer Donald U Ram construction for oil well blow out preventer apparatus
US4605195A (en) * 1985-05-01 1986-08-12 Hydril Company Annular blowout preventer packing unit
US8403290B2 (en) * 2008-06-09 2013-03-26 Alberta Petroleum Industries Ltd. Wiper seal assembly
GB2549210B (en) * 2011-03-23 2018-07-25 Managed Pressure Operations Blow out preventer
US9580987B2 (en) 2014-03-28 2017-02-28 National Oilwell Varco, L.P. Spherical blowout preventer with energizeable packer seal and method of using same
EP3259439B1 (en) 2015-02-17 2021-03-24 National Oilwell Varco, L.P. Sbop swarf wiper
US11655925B1 (en) * 2016-12-01 2023-05-23 Texas First Industrial Corp Connector system and method of use
US10287841B2 (en) * 2017-03-13 2019-05-14 Cameron International Corporation Packer for annular blowout preventer
US10590728B2 (en) 2017-05-19 2020-03-17 Cameron International Corporation Annular blowout preventer packer assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB477457A (en) * 1935-07-22 1937-12-30 Herbert Comstock Otis Improvements in stuffing boxes, especially for well drills
US2164857A (en) * 1936-12-28 1939-07-04 Macclatchie Mfg Company Of Cal Rotatable packer
GB627196A (en) * 1946-08-16 1949-08-02 Hydril Corp Improvements in or relating to control heads and blow-out preventers for well bores
GB868693A (en) * 1958-06-26 1961-05-25 Le Grand Rochester Ltd Improvements in or relating to control heads and blow out preventers for well bores
NL302722A (no) * 1963-02-01
DE1218975B (de) * 1963-02-01 1966-06-16 Shaffer Tool Works Bohrlochpreventer
US3561723A (en) * 1968-05-07 1971-02-09 Edward T Cugini Stripping and blow-out preventer device
DE1944330B1 (de) * 1968-10-04 1972-03-16 Cameron Iron Works Inc Stopfbuechsenpackungen
US3667721A (en) * 1970-04-13 1972-06-06 Rucker Co Blowout preventer
US4099699A (en) * 1976-09-10 1978-07-11 Cameron Iron Works, Inc. Annular blowout preventer

Also Published As

Publication number Publication date
FR2484012B1 (no) 1985-05-03
AU7134081A (en) 1981-12-10
DE3122469A1 (de) 1982-03-25
FR2484012A1 (fr) 1981-12-11
DE3122469C2 (de) 1984-04-12
JPS6116839B2 (no) 1986-05-02
GB2077326A (en) 1981-12-16
NO160538C (no) 1989-04-26
AU527677B2 (en) 1983-03-17
SG78083G (en) 1984-08-03
MX155176A (es) 1988-02-01
US4283039A (en) 1981-08-11
NO160538B (no) 1989-01-16
CA1157769A (en) 1983-11-29
JPS579993A (en) 1982-01-19
GB2077326B (en) 1983-09-21

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