GB2244505A - Bottom hole blowout preventer - Google Patents

Bottom hole blowout preventer

Info

Publication number
GB2244505A
GB2244505A GB9113255A GB9113255A GB2244505A GB 2244505 A GB2244505 A GB 2244505A GB 9113255 A GB9113255 A GB 9113255A GB 9113255 A GB9113255 A GB 9113255A GB 2244505 A GB2244505 A GB 2244505A
Authority
GB
United Kingdom
Prior art keywords
valve
blowout preventer
bottom hole
closure
drill string
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Withdrawn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
GB9113255A
Other versions
GB9113255D0 (en
Inventor
Donald Hugh Lineham
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
Publication of GB9113255D0 publication Critical patent/GB9113255D0/en
Publication of GB2244505A publication Critical patent/GB2244505A/en
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Taps Or Cocks (AREA)
  • Drilling And Boring (AREA)

Abstract

A ball valve type bottom hole blowout preventer (10) operates under normal drilling conditions in a fully open position with an unrestricted bore. This operating condition is maintained by a combination of spring (50, 62) and mud flow pressure acting against the upper surfaces of the valve. In the event of a well kick or blowout pressures from gas or fluid volumes acting against the lower surfaces of the valve force it into the fully closed position. A system of ports and check valves (90) within the blowout preventer forces hydraulic fluid from one chamber (44) to another (66). The metering effect of these ports determines the rate of closure of the valve, thereby allowing normal running and pulling of the drill string or tubing, without interference to pipe fill-up or drainage, from valve closure. This blowout preventer is placed in a sub (94) that is an integral part of the drill string and can be incorporated in a string in any location.
GB9113255A 1989-10-24 1991-06-19 Bottom hole blowout preventer Withdrawn GB2244505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002001387A CA2001387A1 (en) 1989-10-24 1989-10-24 Bottom hole blowout preventer

Publications (2)

Publication Number Publication Date
GB9113255D0 GB9113255D0 (en) 1991-08-07
GB2244505A true GB2244505A (en) 1991-12-04

Family

ID=4143388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9113255A Withdrawn GB2244505A (en) 1989-10-24 1991-06-19 Bottom hole blowout preventer

Country Status (3)

Country Link
CA (1) CA2001387A1 (en)
GB (1) GB2244505A (en)
WO (1) WO1991006743A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10088064B2 (en) 2011-11-28 2018-10-02 Churchill Drilling Tools Limited Drill string check valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110513070B (en) * 2019-09-12 2024-02-02 康庆刚 Flap type downhole oil pipe hydraulic control blowout preventer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126908A (en) * 1964-03-31 figure
US3794112A (en) * 1972-10-02 1974-02-26 Exxon Production Research Co Surface controlled subsurface safety valve
US4074761A (en) * 1971-12-27 1978-02-21 Hydril Company Drilling tool
US4083409A (en) * 1977-05-02 1978-04-11 Halliburton Company Full flow bypass valve
CA1058477A (en) * 1978-10-13 1979-07-17 Robert G. Reay Valve assembly for the remote control of fluid flow having an automatic time delay
US4660596A (en) * 1986-08-19 1987-04-28 Ashford Ronald A Inside B.O.P. valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126908A (en) * 1964-03-31 figure
US4074761A (en) * 1971-12-27 1978-02-21 Hydril Company Drilling tool
US3794112A (en) * 1972-10-02 1974-02-26 Exxon Production Research Co Surface controlled subsurface safety valve
US4083409A (en) * 1977-05-02 1978-04-11 Halliburton Company Full flow bypass valve
CA1058477A (en) * 1978-10-13 1979-07-17 Robert G. Reay Valve assembly for the remote control of fluid flow having an automatic time delay
US4660596A (en) * 1986-08-19 1987-04-28 Ashford Ronald A Inside B.O.P. valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10088064B2 (en) 2011-11-28 2018-10-02 Churchill Drilling Tools Limited Drill string check valve

Also Published As

Publication number Publication date
CA2001387A1 (en) 1991-04-24
GB9113255D0 (en) 1991-08-07
WO1991006743A1 (en) 1991-05-16

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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)