GB2465928B - Downhole safety valve - Google Patents

Downhole safety valve

Info

Publication number
GB2465928B
GB2465928B GB1004979A GB201004979A GB2465928B GB 2465928 B GB2465928 B GB 2465928B GB 1004979 A GB1004979 A GB 1004979A GB 201004979 A GB201004979 A GB 201004979A GB 2465928 B GB2465928 B GB 2465928B
Authority
GB
United Kingdom
Prior art keywords
safety valve
downhole safety
downhole
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 - Fee Related
Application number
GB1004979A
Other versions
GB201004979D0 (en
GB2465928A (en
Inventor
Roddie R Smith
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.)
Weatherford Lamb Inc
Original Assignee
Weatherford Lamb 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 Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of GB201004979D0 publication Critical patent/GB201004979D0/en
Publication of GB2465928A publication Critical patent/GB2465928A/en
Application granted granted Critical
Publication of GB2465928B publication Critical patent/GB2465928B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
    • E21B34/085—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained with time-delay systems, e.g. hydraulic impedance mechanisms
    • 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
    • E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
    • 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
    • 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
    • E21B34/108—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with time delay systems, e.g. hydraulic impedance mechanisms
    • 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
    • E21B34/12—Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
    • 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)
GB1004979A 2005-03-23 2006-03-23 Downhole safety valve Expired - Fee Related GB2465928B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66448705P 2005-03-23 2005-03-23
GB0605750A GB2424435B (en) 2005-03-23 2006-03-23 Downhole safety valve

Publications (3)

Publication Number Publication Date
GB201004979D0 GB201004979D0 (en) 2010-05-12
GB2465928A GB2465928A (en) 2010-06-09
GB2465928B true GB2465928B (en) 2010-08-04

Family

ID=36383969

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1004979A Expired - Fee Related GB2465928B (en) 2005-03-23 2006-03-23 Downhole safety valve
GB0605750A Expired - Fee Related GB2424435B (en) 2005-03-23 2006-03-23 Downhole safety valve

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0605750A Expired - Fee Related GB2424435B (en) 2005-03-23 2006-03-23 Downhole safety valve

Country Status (3)

Country Link
CA (1) CA2540997A1 (en)
GB (2) GB2465928B (en)
NO (1) NO20061295L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101839117B (en) * 2010-04-21 2014-04-02 中国石油化工股份有限公司 Annulus safety valve
US10787900B2 (en) * 2013-11-26 2020-09-29 Weatherford Technology Holdings, Llc Differential pressure indicator for downhole isolation valve
EP3073048B1 (en) * 2015-03-24 2019-02-27 Weatherford Technology Holdings, LLC Downhole isolation valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373587A (en) * 1980-12-08 1983-02-15 Camco, Incorporated Fluid displacement well safety valve

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664195A (en) * 1986-01-31 1987-05-12 Otis Engineering Corporation Safety valve
US6988556B2 (en) * 2002-02-19 2006-01-24 Halliburton Energy Services, Inc. Deep set safety valve
US7246668B2 (en) * 2004-10-01 2007-07-24 Weatherford/Lamb, Inc. Pressure actuated tubing safety valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373587A (en) * 1980-12-08 1983-02-15 Camco, Incorporated Fluid displacement well safety valve

Also Published As

Publication number Publication date
GB2424435B (en) 2010-05-19
NO20061295L (en) 2006-09-25
GB201004979D0 (en) 2010-05-12
GB0605750D0 (en) 2006-05-03
GB2465928A (en) 2010-06-09
CA2540997A1 (en) 2006-09-23
GB2424435A (en) 2006-09-27

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20151029 AND 20151104

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190323