NO751422L - - Google Patents

Info

Publication number
NO751422L
NO751422L NO751422A NO751422A NO751422L NO 751422 L NO751422 L NO 751422L NO 751422 A NO751422 A NO 751422A NO 751422 A NO751422 A NO 751422A NO 751422 L NO751422 L NO 751422L
Authority
NO
Norway
Application number
NO751422A
Other languages
Norwegian (no)
Other versions
NO145481B (en
NO145481C (en
Inventor
J T Aumann
D E Young
Original Assignee
Schlumberger Technology Corp
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 US05/462,824 external-priority patent/US3955623A/en
Priority claimed from US05/462,829 external-priority patent/US3967647A/en
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of NO751422L publication Critical patent/NO751422L/no
Publication of NO145481B publication Critical patent/NO145481B/en
Publication of NO145481C publication Critical patent/NO145481C/en

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
    • E21B34/02—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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/04—Cutting of wire lines or the like
    • 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
    • E21B2200/04—Ball valves
NO751422A 1974-04-22 1975-04-21 DEVICE FOR APPLICATION IN A STABLE UNDERGROUND Blowout SAFETY VALVES E.L. NO145481C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/462,824 US3955623A (en) 1974-04-22 1974-04-22 Subsea control valve apparatus
US05/462,829 US3967647A (en) 1974-04-22 1974-04-22 Subsea control valve apparatus

Publications (3)

Publication Number Publication Date
NO751422L true NO751422L (en) 1975-10-23
NO145481B NO145481B (en) 1981-12-21
NO145481C NO145481C (en) 1982-04-07

Family

ID=27040468

Family Applications (1)

Application Number Title Priority Date Filing Date
NO751422A NO145481C (en) 1974-04-22 1975-04-21 DEVICE FOR APPLICATION IN A STABLE UNDERGROUND Blowout SAFETY VALVES E.L.

Country Status (5)

Country Link
AU (1) AU497520B2 (en)
FR (1) FR2268150B1 (en)
GB (1) GB1505557A (en)
NO (1) NO145481C (en)
OA (1) OA04986A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009753A (en) * 1976-03-22 1977-03-01 Schlumberger Technology Corporation Subsea master valve apparatus
US4086776A (en) * 1977-04-11 1978-05-02 Compagnie Francaise Des Petroles Lock means for a tension line
US4275786A (en) * 1978-12-15 1981-06-30 Schlumberger Technology Corporation Apparatus for selectively coupling cables to well tools
US4320804A (en) * 1979-08-06 1982-03-23 Baker International Corporation Subsea test tree
US4726424A (en) * 1985-04-17 1988-02-23 Raulins George M Well apparatus
GB2173840B (en) * 1985-04-17 1988-07-13 Norward Energy Services Ltd Well apparatus
CN110529072A (en) * 2019-08-20 2019-12-03 西南石油大学 A kind of underwater testing tree of straight electric-type control
CN113445962B (en) * 2021-06-24 2022-05-31 西南石油大学 Hydraulic double-layer pipe double-gradient downhole blowout prevention valve

Also Published As

Publication number Publication date
AU497520B2 (en) 1978-12-14
OA04986A (en) 1980-11-30
GB1505557A (en) 1978-03-30
AU8006375A (en) 1976-10-14
FR2268150B1 (en) 1982-09-10
FR2268150A1 (en) 1975-11-14
NO145481B (en) 1981-12-21
NO145481C (en) 1982-04-07

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