GB2129848B - Well apparatus - Google Patents

Well apparatus

Info

Publication number
GB2129848B
GB2129848B GB08231194A GB8231194A GB2129848B GB 2129848 B GB2129848 B GB 2129848B GB 08231194 A GB08231194 A GB 08231194A GB 8231194 A GB8231194 A GB 8231194A GB 2129848 B GB2129848 B GB 2129848B
Authority
GB
United Kingdom
Prior art keywords
well apparatus
well
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
GB08231194A
Other versions
GB2129848A (en
Inventor
Larry R Russell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08231194A priority Critical patent/GB2129848B/en
Publication of GB2129848A publication Critical patent/GB2129848A/en
Application granted granted Critical
Publication of GB2129848B publication Critical patent/GB2129848B/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons
GB08231194A 1982-11-01 1982-11-01 Well apparatus Expired GB2129848B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08231194A GB2129848B (en) 1982-11-01 1982-11-01 Well apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08231194A GB2129848B (en) 1982-11-01 1982-11-01 Well apparatus

Publications (2)

Publication Number Publication Date
GB2129848A GB2129848A (en) 1984-05-23
GB2129848B true GB2129848B (en) 1986-04-23

Family

ID=10533976

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08231194A Expired GB2129848B (en) 1982-11-01 1982-11-01 Well apparatus

Country Status (1)

Country Link
GB (1) GB2129848B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8909892D0 (en) * 1989-04-28 1989-06-14 Exploration & Prod Serv Well control apparatus
EP0634560A1 (en) * 1993-07-12 1995-01-18 Cooper Cameron Corporation Downhole safety valve
US6513595B1 (en) * 2000-06-09 2003-02-04 Weatherford/Lamb, Inc. Port collar assembly for use in a wellbore
GB2389378A (en) * 2002-05-14 2003-12-10 Flight Refueling Ltd Downhole device operation
GB2389128A (en) * 2002-05-14 2003-12-03 Flight Refueling Ltd Operating downhole devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3824850A (en) * 1971-11-17 1974-07-23 Schlumberger Technology Corp Pressure controlled test valve system for offshore wells

Also Published As

Publication number Publication date
GB2129848A (en) 1984-05-23

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Legal Events

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

Effective date: 19981101