GB2121090B - Well safety valve - Google Patents

Well safety valve

Info

Publication number
GB2121090B
GB2121090B GB08314743A GB8314743A GB2121090B GB 2121090 B GB2121090 B GB 2121090B GB 08314743 A GB08314743 A GB 08314743A GB 8314743 A GB8314743 A GB 8314743A GB 2121090 B GB2121090 B GB 2121090B
Authority
GB
United Kingdom
Prior art keywords
safety valve
well safety
well
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
GB08314743A
Other versions
GB8314743D0 (en
GB2121090A (en
Inventor
Ronald Earl Pringle
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.)
CAMCO Inc
Original Assignee
CAMCO 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 CAMCO Inc filed Critical CAMCO Inc
Publication of GB8314743D0 publication Critical patent/GB8314743D0/en
Publication of GB2121090A publication Critical patent/GB2121090A/en
Application granted granted Critical
Publication of GB2121090B publication Critical patent/GB2121090B/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
    • 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
    • E21B2200/05—Flapper 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)
  • Safety Valves (AREA)
GB08314743A 1982-06-01 1983-05-27 Well safety valve Expired GB2121090B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38389782A 1982-06-01 1982-06-01

Publications (3)

Publication Number Publication Date
GB8314743D0 GB8314743D0 (en) 1983-07-06
GB2121090A GB2121090A (en) 1983-12-14
GB2121090B true GB2121090B (en) 1985-07-10

Family

ID=23515195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08314743A Expired GB2121090B (en) 1982-06-01 1983-05-27 Well safety valve

Country Status (1)

Country Link
GB (1) GB2121090B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527630A (en) * 1982-06-01 1985-07-09 Camco, Incorporated Hydraulic actuating means for subsurface safety valve
US4603742A (en) * 1983-10-05 1986-08-05 Hydril Company Subsurface safety valve
US4524831A (en) * 1983-12-27 1985-06-25 Camco, Incorporated Hydraulic controlled well valve
US4531581A (en) * 1984-03-08 1985-07-30 Camco, Incorporated Piston actuated high temperature well packer
US5293943A (en) * 1991-07-05 1994-03-15 Halliburton Company Safety valve, sealing ring and seal assembly
US5246236A (en) * 1992-01-21 1993-09-21 Halliburton Company Seal for long-time exposures in oil and gas well tools

Also Published As

Publication number Publication date
GB8314743D0 (en) 1983-07-06
GB2121090A (en) 1983-12-14

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years