GB2351775B - Subsurface safety valve actuation pressure amplifier - Google Patents

Subsurface safety valve actuation pressure amplifier

Info

Publication number: GB2351775B
Authority: GB; United Kingdom
Prior art keywords: safety valve; valve actuation; actuation pressure; subsurface safety; pressure amplifier
Prior art date: 1996-08-08
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

GB0025242A

Other versions

GB2351775A (en

GB0025242D0 (en

Inventor

Kurt A Hickey

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.)

Baker Hughes Holdings LLC

Original Assignee

Baker Hughes 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.)

1996-08-08

Filing date

1997-08-07

Publication date

2001-02-28

1996-08-08 Priority claimed from US08/694,359 external-priority patent/US5897095A/en

1997-08-07 Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc

2000-11-29 Publication of GB0025242D0 publication Critical patent/GB0025242D0/en

2001-01-10 Publication of GB2351775A publication Critical patent/GB2351775A/en

2001-02-28 Application granted granted Critical

2001-02-28 Publication of GB2351775B publication Critical patent/GB2351775B/en

2017-08-07 Anticipated expiration legal-status Critical

Status Expired - Fee Related 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
- E21B34/10—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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Mining & Mineral Resources (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Check Valves (AREA)

GB0025242A 1996-08-08 1997-08-07 Subsurface safety valve actuation pressure amplifier Expired - Fee Related GB2351775B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US08/694,359 US5897095A (en)	1996-08-08	1996-08-08	Subsurface safety valve actuation pressure amplifier
GB9716679A GB2322652B (en)	1996-08-08	1997-08-07	Subsurfaces safety valve actuation pressure amplifier

Publications (3)

Publication Number	Publication Date
GB0025242D0 GB0025242D0 (en)	2000-11-29
GB2351775A GB2351775A (en)	2001-01-10
GB2351775B true GB2351775B (en)	2001-02-28

Family

ID=26312023

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0025242A Expired - Fee Related GB2351775B (en)	1996-08-08	1997-08-07	Subsurface safety valve actuation pressure amplifier

Country Status (1)

Country	Link
GB (1)	GB2351775B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1098499A (en) *	1965-05-11	1968-01-10	Frank Marshall Engineers Ltd	An improved hydraulic pressure testing device
WO1981001692A1 (en) *	1979-12-07	1981-06-25	Valmet Oy	Pressure converter for hydraulic brakes,particularly for tractors

1997
- 1997-08-07 GB GB0025242A patent/GB2351775B/en not_active Expired - Fee Related

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1098499A (en) *	1965-05-11	1968-01-10	Frank Marshall Engineers Ltd	An improved hydraulic pressure testing device
WO1981001692A1 (en) *	1979-12-07	1981-06-25	Valmet Oy	Pressure converter for hydraulic brakes,particularly for tractors

Also Published As

Publication number	Publication date
GB2351775A (en)	2001-01-10
GB0025242D0 (en)	2000-11-29

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Legal Events

Date	Code	Title	Description
2005-03-30	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20040807