NL7410916A - Shut-off valve for borehole - blow-out arrester - Google Patents

Shut-off valve for borehole - blow-out arrester

Info

Publication number
NL7410916A
NL7410916A NL7410916A NL7410916A NL7410916A NL 7410916 A NL7410916 A NL 7410916A NL 7410916 A NL7410916 A NL 7410916A NL 7410916 A NL7410916 A NL 7410916A NL 7410916 A NL7410916 A NL 7410916A
Authority
NL
Netherlands
Prior art keywords
valve
pressure
shut
valve body
housing
Prior art date
Application number
NL7410916A
Other languages
Dutch (nl)
Other versions
NL162989C (en
NL162989B (en
Original Assignee
Baker Oil Tools 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 Baker Oil Tools Inc filed Critical Baker Oil Tools Inc
Priority to NL7410916.A priority Critical patent/NL162989C/en
Publication of NL7410916A publication Critical patent/NL7410916A/en
Publication of NL162989B publication Critical patent/NL162989B/en
Application granted granted Critical
Publication of NL162989C publication Critical patent/NL162989C/en

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
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater well heads
    • E21B34/045—Valve arrangements for boreholes or wells in well heads in underwater well heads adapted to be lowered on a tubular string into position within a blow-out preventer stack, e.g. so-called test trees
    • 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
    • E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
    • E21B2200/04—Ball 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)
  • Control Of Fluid Pressure (AREA)

Abstract

In a shut-off valve intended to be lowered on a pipe string into a blow-out valve shaft in the outlet of a borehole, provided in known manner, with (i) a housing with a channel passing through it and a displaceable valve body which opens this channel in a first position and closes it in a second, (ii) a pressure-sensitive operating element connected to a pressure pipe for displacing the valve body to the first position and a closure element which displaces the valve body to the second position on reduction of the pressure in the pressure pipe, the improvement whereby the operating element is exposed to the hydrostatic pressure of the fluid surrounding the housing in order to compensate for the hydrostatic pressure of the fluid in the pressure pipe. More especially, the valve body is constructed as a pivotable ball with a passageway opening which can be brought into line with the channel in the housing. Overcomes problems which exist in known shut-off valves, inter alia the high pressure which must be exerted on the operating piston when the valve is held open to overcome the hydrostatic pressure of the medium surrounding the valve, and the fact that if a cable passing through the valve breaks above the valve, this cannot be shut because the cable cannot be withdrawn.
NL7410916.A 1974-08-15 1974-08-15 VALVE, INTENDED FOR INSTALLATION IN AN ERUPTION VALVE SHAFT OF AN UNDERWATER DRILL WATER. NL162989C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7410916.A NL162989C (en) 1974-08-15 1974-08-15 VALVE, INTENDED FOR INSTALLATION IN AN ERUPTION VALVE SHAFT OF AN UNDERWATER DRILL WATER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7410916.A NL162989C (en) 1974-08-15 1974-08-15 VALVE, INTENDED FOR INSTALLATION IN AN ERUPTION VALVE SHAFT OF AN UNDERWATER DRILL WATER.

Publications (3)

Publication Number Publication Date
NL7410916A true NL7410916A (en) 1976-02-17
NL162989B NL162989B (en) 1980-02-15
NL162989C NL162989C (en) 1980-07-15

Family

ID=19821919

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7410916.A NL162989C (en) 1974-08-15 1974-08-15 VALVE, INTENDED FOR INSTALLATION IN AN ERUPTION VALVE SHAFT OF AN UNDERWATER DRILL WATER.

Country Status (1)

Country Link
NL (1) NL162989C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108374645A (en) * 2018-02-08 2018-08-07 西南石油大学 A kind of interior blowout hookup of deep water hydrocarbon test

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108374645A (en) * 2018-02-08 2018-08-07 西南石油大学 A kind of interior blowout hookup of deep water hydrocarbon test

Also Published As

Publication number Publication date
NL162989C (en) 1980-07-15
NL162989B (en) 1980-02-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee