GB9414612D0 - Surface controlled, subsurface tubing safety valve - Google Patents

Surface controlled, subsurface tubing safety valve

Info

Publication number
GB9414612D0
GB9414612D0 GB9414612A GB9414612A GB9414612D0 GB 9414612 D0 GB9414612 D0 GB 9414612D0 GB 9414612 A GB9414612 A GB 9414612A GB 9414612 A GB9414612 A GB 9414612A GB 9414612 D0 GB9414612 D0 GB 9414612D0
Authority
GB
United Kingdom
Prior art keywords
safety valve
surface controlled
tubing safety
subsurface tubing
subsurface
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.)
Withdrawn
Application number
GB9414612A
Other versions
GB2278866A (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
Priority claimed from GB9317212A external-priority patent/GB2270530A/en
Application filed by AVA International Corp filed Critical AVA International Corp
Publication of GB9414612D0 publication Critical patent/GB9414612D0/en
Publication of GB2278866A publication Critical patent/GB2278866A/en
Withdrawn legal-status Critical Current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
    • E21B2200/05—Flapper valves
GB9414612A 1992-08-21 1994-07-20 Subsurface tubing safety valve Withdrawn GB2278866A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93417492A 1992-08-21 1992-08-21
GB9317212A GB2270530A (en) 1992-08-21 1993-08-18 Surface controlled subsurface tubing safety valve

Publications (2)

Publication Number Publication Date
GB9414612D0 true GB9414612D0 (en) 1994-09-14
GB2278866A GB2278866A (en) 1994-12-14

Family

ID=26303399

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9414612A Withdrawn GB2278866A (en) 1992-08-21 1994-07-20 Subsurface tubing safety valve
GB9414613A Withdrawn GB2278867A (en) 1992-08-21 1994-07-20 Surface controlled subsurface tubing safety valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9414613A Withdrawn GB2278867A (en) 1992-08-21 1994-07-20 Surface controlled subsurface tubing safety valve

Country Status (1)

Country Link
GB (2) GB2278866A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9916550A (en) 1998-09-21 2001-11-13 Camco Int Subsurface eccentric safety valve for controlling fluid flow in a wellhead
US8453748B2 (en) * 2010-03-31 2013-06-04 Halliburton Energy Services, Inc. Subterranean well valve activated with differential pressure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2112041B (en) * 1981-12-18 1985-03-27 Camco Inc Fluid displacement well safety valve
US4467870A (en) * 1982-07-06 1984-08-28 Baker Oil Tools, Inc. Fluid pressure actuator for subterranean well apparatus
US4475598A (en) * 1982-07-06 1984-10-09 Baker Oil Tools, Inc. Ball valve actuating mechanism
US4796705A (en) * 1987-08-26 1989-01-10 Baker Oil Tools, Inc. Subsurface well safety valve
US4951753A (en) * 1989-10-12 1990-08-28 Baker Hughes Incorporated Subsurface well safety valve

Also Published As

Publication number Publication date
GB2278866A (en) 1994-12-14
GB9414613D0 (en) 1994-09-07
GB2278867A (en) 1994-12-14

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)