CA965698A - Subsurface safety valve - Google Patents

Subsurface safety valve

Info

Publication number
CA965698A
CA965698A CA162,266A CA162266A CA965698A CA 965698 A CA965698 A CA 965698A CA 162266 A CA162266 A CA 162266A CA 965698 A CA965698 A CA 965698A
Authority
CA
Canada
Prior art keywords
safety valve
subsurface safety
subsurface
valve
safety
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
CA162,266A
Other versions
CA162266S (en
Inventor
Delbert L. Hudson
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.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Baker Oil Tools 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 Baker Oil Tools Inc filed Critical Baker Oil Tools Inc
Application granted granted Critical
Publication of CA965698A publication Critical patent/CA965698A/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
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/10—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
    • E21B34/101—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for equalizing fluid pressure above and below the valve
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball valves

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Taps Or Cocks (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
CA162,266A 1972-03-20 1973-01-29 Subsurface safety valve Expired CA965698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23625672A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
CA965698A true CA965698A (en) 1975-04-08

Family

ID=22888757

Family Applications (1)

Application Number Title Priority Date Filing Date
CA162,266A Expired CA965698A (en) 1972-03-20 1973-01-29 Subsurface safety valve

Country Status (6)

Country Link
US (1) US3796257A (en)
JP (1) JPS5439321B2 (en)
CA (1) CA965698A (en)
FR (1) FR2176681B1 (en)
GB (1) GB1385444A (en)
IT (1) IT974455B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108999589A (en) * 2018-07-26 2018-12-14 中国石油大学(华东) A kind of workover treatment downhole blow-out preventer

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3830297A (en) * 1973-01-08 1974-08-20 Baker Oil Tools Inc Sub-surface safety valve with improved balancing valve means
US3971438A (en) * 1975-03-03 1976-07-27 Baker Oil Tools, Inc. Wireline safety valve with split ball
US4294315A (en) * 1978-11-13 1981-10-13 Otis Engineering Corporation Landing nipple
US4651829A (en) * 1985-12-13 1987-03-24 Halliburton Company Subsurface control valve
US4807700A (en) * 1987-09-18 1989-02-28 Cameron Iron Works Usa, Inc. Wireline downhole annulus valve
GB2267920B (en) * 1992-06-17 1995-12-06 Petroleum Eng Services Improvements in or relating to well-head structures
GB9511386D0 (en) * 1995-06-06 1995-08-02 Petroleum Eng Services Improvements relating to ball valves
GB2375122B (en) * 2001-03-14 2003-09-24 Schlumberger Holdings Activation of valves in tool strings
US6666271B2 (en) 2001-11-01 2003-12-23 Weatherford/Lamb, Inc. Curved flapper and seat for a subsurface saftey valve
US10344562B2 (en) * 2016-04-05 2019-07-09 Weatherford Technology Holdings, Llc Riser annular isolation device
WO2018227003A1 (en) * 2017-06-08 2018-12-13 Superior Energy Services, Llc Deep set safety valve

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007669A (en) * 1956-09-13 1961-11-07 Otis Eng Co Valve
US3094170A (en) * 1960-05-31 1963-06-18 Continental Oil Co Subsurface well tubing safety valve
US3313350A (en) * 1964-05-14 1967-04-11 Jr John S Page Tubing and annulus flow control apparatus
US3310114A (en) * 1964-07-01 1967-03-21 Otis Eng Co Pressure operated safety valve
US3494421A (en) * 1965-11-29 1970-02-10 Otis Eng Corp Method of installing a wellhead system
US3675720A (en) * 1970-07-08 1972-07-11 Otis Eng Corp Well flow control system and method
US3633669A (en) * 1970-08-24 1972-01-11 Exxon Production Research Co Apparatus for running in and operation of valves and the like

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108999589A (en) * 2018-07-26 2018-12-14 中国石油大学(华东) A kind of workover treatment downhole blow-out preventer
CN108999589B (en) * 2018-07-26 2021-11-23 中国石油大学(华东) Downhole blowout preventer for workover operation

Also Published As

Publication number Publication date
JPS5439321B2 (en) 1979-11-27
GB1385444A (en) 1975-02-26
DE2313357B2 (en) 1976-10-14
DE2313357A1 (en) 1973-10-04
JPS4947934A (en) 1974-05-09
FR2176681B1 (en) 1981-04-10
IT974455B (en) 1974-06-20
US3796257A (en) 1974-03-12
FR2176681A1 (en) 1973-11-02

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