GB2478107B - Sub surface safety valve - Google Patents

Sub surface safety valve

Info

Publication number
GB2478107B
GB2478107B GB0920976.8A GB0920976A GB2478107B GB 2478107 B GB2478107 B GB 2478107B GB 0920976 A GB0920976 A GB 0920976A GB 2478107 B GB2478107 B GB 2478107B
Authority
GB
United Kingdom
Prior art keywords
safety valve
sub surface
surface safety
sub
valve
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
GB0920976.8A
Other versions
GB2478107A (en
GB0920976D0 (en
Inventor
Philip Head
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.)
Artificial Lift Co Ltd
Original Assignee
Artificial Lift Co Ltd
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 Artificial Lift Co Ltd filed Critical Artificial Lift Co Ltd
Priority to GB0920976.8A priority Critical patent/GB2478107B/en
Publication of GB0920976D0 publication Critical patent/GB0920976D0/en
Publication of GB2478107A publication Critical patent/GB2478107A/en
Application granted granted Critical
Publication of GB2478107B publication Critical patent/GB2478107B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/122—Multiple string packers
    • 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
    • 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
GB0920976.8A 2009-12-01 2009-12-01 Sub surface safety valve Expired - Fee Related GB2478107B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0920976.8A GB2478107B (en) 2009-12-01 2009-12-01 Sub surface safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0920976.8A GB2478107B (en) 2009-12-01 2009-12-01 Sub surface safety valve

Publications (3)

Publication Number Publication Date
GB0920976D0 GB0920976D0 (en) 2010-01-13
GB2478107A GB2478107A (en) 2011-08-31
GB2478107B true GB2478107B (en) 2012-10-10

Family

ID=41572929

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0920976.8A Expired - Fee Related GB2478107B (en) 2009-12-01 2009-12-01 Sub surface safety valve

Country Status (1)

Country Link
GB (1) GB2478107B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276937A (en) * 1979-02-07 1981-07-07 Otis Engineering Corporation Well safety system
GB2173235A (en) * 1985-04-01 1986-10-08 Camco Inc Redundant safety valve system and method
US20080164035A1 (en) * 2004-10-07 2008-07-10 Bj Services Company Downhole Safety Valve Apparatus and Method
US20080210438A1 (en) * 2004-09-20 2008-09-04 Bj Services Company Downhole Safety Valve Apparatus and Method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4276937A (en) * 1979-02-07 1981-07-07 Otis Engineering Corporation Well safety system
GB2173235A (en) * 1985-04-01 1986-10-08 Camco Inc Redundant safety valve system and method
US20080210438A1 (en) * 2004-09-20 2008-09-04 Bj Services Company Downhole Safety Valve Apparatus and Method
US20080164035A1 (en) * 2004-10-07 2008-07-10 Bj Services Company Downhole Safety Valve Apparatus and Method

Also Published As

Publication number Publication date
GB2478107A (en) 2011-08-31
GB0920976D0 (en) 2010-01-13

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)
S20A Reinstatement of application (sect. 20a/patents act 1977)

Free format text: REQUEST FOR REINSTATEMENT ALLOWED

Effective date: 20110525

Free format text: REQUEST FOR REINSTATEMENT FILED

Effective date: 20110505

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131201