GB1387752A - Safety valve assembly for production wells - Google Patents

Safety valve assembly for production wells

Info

Publication number: GB1387752A
Authority: GB; United Kingdom
Prior art keywords: valve assembly; safety valve; production wells; wells; production
Prior art date: 1971-04-28
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

Application number

GB1960272A

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.)

Schlumberger Technology Corp

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.)

1971-04-28

Filing date

1972-04-27

Publication date

1975-03-19

1972-04-27 Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp

1975-03-19 Publication of GB1387752A publication Critical patent/GB1387752A/en

Status Expired legal-status Critical Current

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
- 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)
Safety Valves (AREA)

GB1960272A 1971-04-28 1972-04-27 Safety valve assembly for production wells Expired GB1387752A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US13813871A	1971-04-28	1971-04-28
US15511871A	1971-06-21	1971-06-21

Publications (1)

Publication Number	Publication Date
GB1387752A true GB1387752A (en)	1975-03-19

Family

ID=26835898

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB1960272A Expired GB1387752A (en)	1971-04-28	1972-04-27	Safety valve assembly for production wells

Country Status (4)

Country	Link
AR (1)	AR207201A1 (en)
DE (1)	DE2220403A1 (en)
FR (1)	FR2136734A5 (en)
GB (1)	GB1387752A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2163794A (en) *	1984-08-29	1986-03-05	Camco Inc	Fluid level controlled safety valve
GB2245914A (en) *	1990-07-11	1992-01-15	Camco Int	Orifice well safety valve with release mechanism
US7740075B2 (en)	2008-07-09	2010-06-22	Schlumberger Technology Corporation	Pressure relief actuated valves

1972
- 1972-01-01 AR AR241688A patent/AR207201A1/en active
- 1972-04-26 DE DE19722220403 patent/DE2220403A1/en active Pending
- 1972-04-27 GB GB1960272A patent/GB1387752A/en not_active Expired
- 1972-04-27 FR FR7214984A patent/FR2136734A5/fr not_active Expired

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2163794A (en) *	1984-08-29	1986-03-05	Camco Inc	Fluid level controlled safety valve
GB2245914A (en) *	1990-07-11	1992-01-15	Camco Int	Orifice well safety valve with release mechanism
GB2245914B (en) *	1990-07-11	1994-05-11	Camco Int	Orifice well safety valve with release mechanism
US7740075B2 (en)	2008-07-09	2010-06-22	Schlumberger Technology Corporation	Pressure relief actuated valves

Also Published As

Publication number	Publication date
AR207201A1 (en)	1976-09-22
FR2136734A5 (en)	1972-12-22
DE2220403A1 (en)	1972-11-02

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Legal Events

Date	Code	Title	Description
1975-07-30	PS	Patent sealed
1983-12-14	PCNP	Patent ceased through non-payment of renewal fee