GB8503235D0 - Subsurface safety valve - Google Patents

Subsurface safety valve

Info

Publication number
GB8503235D0
GB8503235D0 GB858503235A GB8503235A GB8503235D0 GB 8503235 D0 GB8503235 D0 GB 8503235D0 GB 858503235 A GB858503235 A GB 858503235A GB 8503235 A GB8503235 A GB 8503235A GB 8503235 D0 GB8503235 D0 GB 8503235D0
Authority
GB
United Kingdom
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.)
Granted
Application number
GB858503235A
Other versions
GB2170836A (en
GB2170836B (en
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.)
AVA International Corp
Original Assignee
AVA International Corp
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 AVA International Corp filed Critical AVA International Corp
Priority to GB08503235A priority Critical patent/GB2170836B/en
Publication of GB8503235D0 publication Critical patent/GB8503235D0/en
Publication of GB2170836A publication Critical patent/GB2170836A/en
Application granted granted Critical
Publication of GB2170836B publication Critical patent/GB2170836B/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
    • E21B34/105—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid
    • E21B34/107—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole retrievable, e.g. wire line retrievable, i.e. with an element which can be landed into a landing-nipple provided with a passage for control fluid the retrievable element being an operating or controlling means retrievable separately from the closure member, e.g. pilot valve landed into a side pocket
    • 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)
  • Lift Valve (AREA)
GB08503235A 1985-02-08 1985-02-08 Subsurface safety valve Expired GB2170836B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08503235A GB2170836B (en) 1985-02-08 1985-02-08 Subsurface safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08503235A GB2170836B (en) 1985-02-08 1985-02-08 Subsurface safety valve

Publications (3)

Publication Number Publication Date
GB8503235D0 true GB8503235D0 (en) 1985-03-13
GB2170836A GB2170836A (en) 1986-08-13
GB2170836B GB2170836B (en) 1988-05-11

Family

ID=10574143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08503235A Expired GB2170836B (en) 1985-02-08 1985-02-08 Subsurface safety valve

Country Status (1)

Country Link
GB (1) GB2170836B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193615A (en) * 1990-05-04 1993-03-16 Ava International Corporation Apparatus for use in controlling flow through a tubing string suspended and packed off within well bore as well as within the annulus between the tubing string and well bore above and below the packer

Also Published As

Publication number Publication date
GB2170836A (en) 1986-08-13
GB2170836B (en) 1988-05-11

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Legal Events

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

Effective date: 19950208