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GB2388140B - Valve assembly - Google Patents

Valve assembly

Info

Publication number
GB2388140B
GB2388140B GB0318842A GB0318842A GB2388140B GB 2388140 B GB2388140 B GB 2388140B GB 0318842 A GB0318842 A GB 0318842A GB 0318842 A GB0318842 A GB 0318842A GB 2388140 B GB2388140 B GB 2388140B
Authority
GB
United Kingdom
Prior art keywords
valve assembly
valve
assembly
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
GB0318842A
Other versions
GB2388140A (en
GB0318842D0 (en
Inventor
Clive John French
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.)
QUARTECH ENGINEERING Ltd
Original Assignee
QUARTECH ENGINEERING 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
Priority claimed from GBGB9911545.3A external-priority patent/GB9911545D0/en
Application filed by QUARTECH ENGINEERING Ltd filed Critical QUARTECH ENGINEERING Ltd
Publication of GB0318842D0 publication Critical patent/GB0318842D0/en
Publication of GB2388140A publication Critical patent/GB2388140A/en
Application granted granted Critical
Publication of GB2388140B publication Critical patent/GB2388140B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • 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
    • 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
    • E21B34/101—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for equalizing fluid pressure above and below the valve
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/003—Means for stopping loss of drilling fluid
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)
  • Lift Valve (AREA)
GB0318842A 1999-05-19 2000-05-19 Valve assembly Expired - Fee Related GB2388140B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9911545.3A GB9911545D0 (en) 1999-05-19 1999-05-19 Valve assembly
GB0012206A GB2350852B (en) 1999-05-19 2000-05-19 Well operating method

Publications (3)

Publication Number Publication Date
GB0318842D0 GB0318842D0 (en) 2003-09-10
GB2388140A GB2388140A (en) 2003-11-05
GB2388140B true GB2388140B (en) 2003-12-17

Family

ID=28793297

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0318842A Expired - Fee Related GB2388140B (en) 1999-05-19 2000-05-19 Valve assembly
GB0318841A Expired - Fee Related GB2388139B (en) 1999-05-19 2000-05-19 Valve assembly

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0318841A Expired - Fee Related GB2388139B (en) 1999-05-19 2000-05-19 Valve assembly

Country Status (1)

Country Link
GB (2) GB2388140B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11499395B2 (en) * 2019-08-26 2022-11-15 Halliburton Energy Services, Inc. Flapper disk for buoyancy assisted casing equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2269876C (en) * 1998-05-18 2005-12-27 Gulf Technologies International, L.C. Underbalanced drill string deployment valve method and apparatus
US6167974B1 (en) * 1998-09-08 2001-01-02 Halliburton Energy Services, Inc. Method of underbalanced drilling

Also Published As

Publication number Publication date
GB2388139A (en) 2003-11-05
GB2388139B (en) 2003-12-17
GB2388140A (en) 2003-11-05
GB0318842D0 (en) 2003-09-10
GB0318841D0 (en) 2003-09-10

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Legal Events

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

Effective date: 20040519