NO850861L - Trykkladet sikkerhetsventil. - Google Patents
Trykkladet sikkerhetsventil.Info
- Publication number
- NO850861L NO850861L NO850861A NO850861A NO850861L NO 850861 L NO850861 L NO 850861L NO 850861 A NO850861 A NO 850861A NO 850861 A NO850861 A NO 850861A NO 850861 L NO850861 L NO 850861L
- Authority
- NO
- Norway
- Prior art keywords
- pressure
- valve
- piston
- housing
- seal
- Prior art date
Links
- 239000012530 fluid Substances 0.000 abstract 3
- 238000005461 lubrication Methods 0.000 abstract 1
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
- E21B2200/00—Special features related to earth drilling for obtaining oil, gas or water
- E21B2200/05—Flapper 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)
- Actuator (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/612,271 US4676307A (en) | 1984-05-21 | 1984-05-21 | Pressure charged low spread safety valve |
Publications (1)
Publication Number | Publication Date |
---|---|
NO850861L true NO850861L (no) | 1985-11-22 |
Family
ID=24452461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO850861A NO850861L (no) | 1984-05-21 | 1985-03-04 | Trykkladet sikkerhetsventil. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4676307A (fr) |
FR (1) | FR2564522B1 (fr) |
GB (1) | GB2159193B (fr) |
NO (1) | NO850861L (fr) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986357A (en) * | 1990-04-09 | 1991-01-22 | Pringle Ronald E | Well tool having a variable area hydraulic actuator |
US5058682A (en) * | 1990-08-29 | 1991-10-22 | Camco International Inc. | Equalizing means for a subsurface well safety valve |
US5170845A (en) * | 1991-05-13 | 1992-12-15 | Otis Engineering Corp. | Subsurface safety valves and method and apparatus for their operation |
US5310004A (en) * | 1993-01-13 | 1994-05-10 | Camco International Inc. | Fail safe gas bias safety valve |
US5906220A (en) * | 1996-01-16 | 1999-05-25 | Baker Hughes Incorporated | Control system with collection chamber |
US6230807B1 (en) * | 1997-03-19 | 2001-05-15 | Schlumberger Technology Corp. | Valve operating mechanism |
US6302210B1 (en) | 1997-11-10 | 2001-10-16 | Halliburton Energy Services, Inc. | Safety valve utilizing an isolation valve and method of using the same |
US5947206A (en) * | 1997-11-25 | 1999-09-07 | Camco International Inc. | Deep-set annulus vent valve |
US6109357A (en) * | 1997-12-12 | 2000-08-29 | Baker Hughes Incorporated | Control line actuation of multiple downhole components |
US6109351A (en) * | 1998-08-31 | 2000-08-29 | Baker Hughes Incorporated | Failsafe control system for a subsurface safety valve |
US6173785B1 (en) * | 1998-10-15 | 2001-01-16 | Baker Hughes Incorporated | Pressure-balanced rod piston control system for a subsurface safety valve |
US6427778B1 (en) | 2000-05-18 | 2002-08-06 | Baker Hughes Incorporated | Control system for deep set subsurface valves |
US6491106B1 (en) | 2001-03-14 | 2002-12-10 | Halliburton Energy Services, Inc. | Method of controlling a subsurface safety valve |
CA2474063C (fr) * | 2002-01-22 | 2008-04-01 | Baker Hughes Incorporated | Systeme et procede de commande a securite integree d'une vanne de fond en cas de rupture de tubage |
NO337918B1 (no) * | 2004-10-20 | 2016-07-11 | Schlumberger Technology Bv | Brønnsikringsventil og fremgangsmåte for å drifte samme |
US7258508B2 (en) * | 2005-03-08 | 2007-08-21 | Baker Hughes Incorporated | Annular safety and flow control system for underground gas storage |
US8701782B2 (en) * | 2007-03-26 | 2014-04-22 | Baker Hughes Incorporated | Subsurface safety valve with metal seal |
US20080314599A1 (en) * | 2007-06-21 | 2008-12-25 | Bane Darren E | Tubing Pressure Balanced Operating System with Low Operating Pressure |
US7954552B2 (en) * | 2008-05-14 | 2011-06-07 | Schlumberger Technology Corporation | Overriding a primary control subsystem of a downhole tool |
US8181931B2 (en) * | 2009-01-06 | 2012-05-22 | Vetco Gray Inc. | Mechanically operated hydraulic valve actuator |
US9745830B2 (en) * | 2014-10-20 | 2017-08-29 | Weatherford Technology Holdings, Llc | Failsafe subsurface controlled safety valve |
US11180968B2 (en) | 2017-10-19 | 2021-11-23 | Dril-Quip, Inc. | Tubing hanger alignment device |
US10794147B2 (en) | 2018-05-04 | 2020-10-06 | Baker Hughes, A Ge Company, Llc | Downhole component including a unitary body having an internal annular chamber and fluid passages |
US11230906B2 (en) | 2020-06-02 | 2022-01-25 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve |
US11215026B2 (en) | 2020-06-02 | 2022-01-04 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve |
US11215028B2 (en) | 2020-06-02 | 2022-01-04 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve |
US11365605B2 (en) | 2020-06-02 | 2022-06-21 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve |
US11215031B2 (en) | 2020-06-02 | 2022-01-04 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve with shiftable valve sleeve |
US11215030B2 (en) | 2020-06-02 | 2022-01-04 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve with shiftable valve seat |
US11359460B2 (en) | 2020-06-02 | 2022-06-14 | Baker Hughes Oilfield Operations Llc | Locking backpressure valve |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750751A (en) * | 1971-04-06 | 1973-08-07 | Hydril Co | Subsurface safety valve |
US3782461A (en) * | 1971-06-01 | 1974-01-01 | Camco Inc | Pressurized chamber well safety valve |
US4077473A (en) * | 1977-04-18 | 1978-03-07 | Camco, Incorporated | Well safety valve |
US4161219A (en) * | 1978-02-27 | 1979-07-17 | Camco, Incorporated | Piston actuated well safety valve |
US4252197A (en) * | 1979-04-05 | 1981-02-24 | Camco, Incorporated | Piston actuated well safety valve |
US4373587A (en) * | 1980-12-08 | 1983-02-15 | Camco, Incorporated | Fluid displacement well safety valve |
US4448254A (en) * | 1982-03-04 | 1984-05-15 | Halliburton Company | Tester valve with silicone liquid spring |
US4515219A (en) * | 1983-09-19 | 1985-05-07 | Halliburton Company | Low pressure responsive downhole tool with floating shoe retarding means |
-
1984
- 1984-05-21 US US06/612,271 patent/US4676307A/en not_active Expired - Fee Related
-
1985
- 1985-02-20 FR FR858502445A patent/FR2564522B1/fr not_active Expired
- 1985-03-04 NO NO850861A patent/NO850861L/no unknown
- 1985-03-20 GB GB08507184A patent/GB2159193B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4676307A (en) | 1987-06-30 |
GB8507184D0 (en) | 1985-04-24 |
GB2159193A (en) | 1985-11-27 |
FR2564522A1 (fr) | 1985-11-22 |
GB2159193B (en) | 1987-07-08 |
FR2564522B1 (fr) | 1989-04-14 |
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