GB2235938B - Annulus safety valve - Google Patents

Annulus safety valve

Info

Publication number
GB2235938B
GB2235938B GB9017916A GB9017916A GB2235938B GB 2235938 B GB2235938 B GB 2235938B GB 9017916 A GB9017916 A GB 9017916A GB 9017916 A GB9017916 A GB 9017916A GB 2235938 B GB2235938 B GB 2235938B
Authority
GB
United Kingdom
Prior art keywords
safety valve
annulus safety
annulus
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 - Fee Related
Application number
GB9017916A
Other versions
GB9017916D0 (en
GB2235938A (en
Inventor
Hans Paul Hopper
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.)
BP PLC
Original Assignee
BP PLC
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
Priority claimed from GB898919704A external-priority patent/GB8919704D0/en
Priority claimed from GB909001366A external-priority patent/GB9001366D0/en
Application filed by BP PLC filed Critical BP PLC
Priority to GB9017916A priority Critical patent/GB2235938B/en
Publication of GB9017916D0 publication Critical patent/GB9017916D0/en
Publication of GB2235938A publication Critical patent/GB2235938A/en
Application granted granted Critical
Publication of GB2235938B publication Critical patent/GB2235938B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
    • E21B33/1294—Packers; Plugs with mechanical slips for hooking into the casing characterised by a valve, e.g. a by-pass 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
    • 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

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)
  • Safety Valves (AREA)
GB9017916A 1989-08-31 1990-08-15 Annulus safety valve Expired - Fee Related GB2235938B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9017916A GB2235938B (en) 1989-08-31 1990-08-15 Annulus safety valve

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB898919704A GB8919704D0 (en) 1989-08-31 1989-08-31 Annulus downhole safety valve
GB909001366A GB9001366D0 (en) 1990-01-20 1990-01-20 Annulus safety valve
GB9017916A GB2235938B (en) 1989-08-31 1990-08-15 Annulus safety valve

Publications (3)

Publication Number Publication Date
GB9017916D0 GB9017916D0 (en) 1990-09-26
GB2235938A GB2235938A (en) 1991-03-20
GB2235938B true GB2235938B (en) 1993-01-27

Family

ID=27264663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9017916A Expired - Fee Related GB2235938B (en) 1989-08-31 1990-08-15 Annulus safety valve

Country Status (1)

Country Link
GB (1) GB2235938B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5246236A (en) * 1992-01-21 1993-09-21 Halliburton Company Seal for long-time exposures in oil and gas well tools
US5505263A (en) * 1993-10-08 1996-04-09 White; Pat M. Packer set safety valve for controlling dual fluid flows
US5810083A (en) * 1996-11-25 1998-09-22 Halliburton Energy Services, Inc. Retrievable annular safety valve system
GB9911313D0 (en) * 1999-05-14 1999-07-14 Kvaerner Oil & Gas Ltd Valve control arrangement
US6349770B1 (en) * 2000-01-14 2002-02-26 Weatherford/Lamb, Inc. Telescoping tool
EP2233690A1 (en) * 2009-03-13 2010-09-29 BP Alternative Energy International Limited Fluid injection
GB2479000A (en) * 2010-03-27 2011-09-28 Gerry Borthwick A surface controlled annular safety device
CN112211590B (en) * 2019-07-11 2022-08-30 中国石油天然气股份有限公司 Gas lift circulating valve
CN112696170B (en) * 2019-10-23 2022-12-13 中国石油化工股份有限公司 Oil jacket safety packer with anchoring function and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049765A (en) * 1979-05-10 1980-12-31 Regan Offshore Int Annulus valve for wells
GB2214543A (en) * 1988-01-28 1989-09-06 British Petroleum Co Plc Annulus shut-off mechanism
GB2218135A (en) * 1988-05-03 1989-11-08 Vetco Gray Inc Oil well annulus valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2049765A (en) * 1979-05-10 1980-12-31 Regan Offshore Int Annulus valve for wells
GB2214543A (en) * 1988-01-28 1989-09-06 British Petroleum Co Plc Annulus shut-off mechanism
GB2218135A (en) * 1988-05-03 1989-11-08 Vetco Gray Inc Oil well annulus valve

Also Published As

Publication number Publication date
GB9017916D0 (en) 1990-09-26
GB2235938A (en) 1991-03-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940815