NO850874L - Roertrykkbalansert broennsikkerhetsventil - Google Patents
Roertrykkbalansert broennsikkerhetsventilInfo
- Publication number
- NO850874L NO850874L NO850874A NO850874A NO850874L NO 850874 L NO850874 L NO 850874L NO 850874 A NO850874 A NO 850874A NO 850874 A NO850874 A NO 850874A NO 850874 L NO850874 L NO 850874L
- Authority
- NO
- Norway
- Prior art keywords
- housing
- piston
- tubular member
- pressure
- valve
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 29
- 238000009423 ventilation Methods 0.000 claims description 14
- 230000002706 hydrostatic effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 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)
- Safety Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Fluid-Pressure Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/588,609 US4495998A (en) | 1984-03-12 | 1984-03-12 | Tubing pressure balanced well safety valve |
Publications (1)
Publication Number | Publication Date |
---|---|
NO850874L true NO850874L (no) | 1985-09-13 |
Family
ID=24354569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO850874A NO850874L (no) | 1984-03-12 | 1985-03-05 | Roertrykkbalansert broennsikkerhetsventil |
Country Status (4)
Country | Link |
---|---|
US (1) | US4495998A (fr) |
FR (1) | FR2560926A1 (fr) |
GB (1) | GB2155976B (fr) |
NO (1) | NO850874L (fr) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4569398A (en) * | 1983-09-30 | 1986-02-11 | Camco, Incorporated | Subsurface well safety valve |
US4598773A (en) * | 1984-03-12 | 1986-07-08 | Camco, Incorporated | Fail-safe well safety valve and method |
US4945993A (en) * | 1988-05-06 | 1990-08-07 | Otis Engineering Corporation | Surface controlled subsurface safety valve |
US4860991A (en) * | 1989-04-06 | 1989-08-29 | Camco, Incorporated | Safety valve |
US6302210B1 (en) * | 1997-11-10 | 2001-10-16 | Halliburton Energy Services, Inc. | Safety valve utilizing an isolation valve and method of using the same |
US6237693B1 (en) | 1999-08-13 | 2001-05-29 | Camco International Inc. | Failsafe safety valve and method |
US6491106B1 (en) | 2001-03-14 | 2002-12-10 | Halliburton Energy Services, Inc. | Method of controlling a subsurface safety valve |
US6854519B2 (en) * | 2002-05-03 | 2005-02-15 | Weatherford/Lamb, Inc. | Subsurface valve with system and method for sealing |
US7451809B2 (en) * | 2002-10-11 | 2008-11-18 | Weatherford/Lamb, Inc. | Apparatus and methods for utilizing a downhole deployment valve |
US7314091B2 (en) * | 2003-09-24 | 2008-01-01 | Weatherford/Lamb, Inc. | Cement-through, tubing retrievable safety valve |
US20080314599A1 (en) * | 2007-06-21 | 2008-12-25 | Bane Darren E | Tubing Pressure Balanced Operating System with Low Operating Pressure |
US7954550B2 (en) * | 2008-11-13 | 2011-06-07 | Baker Hughes Incorporated | Tubing pressure insensitive control system |
US9394909B2 (en) * | 2012-08-01 | 2016-07-19 | Schlumberger Technology Corporation | Submersible pump housing with seal bleed ports |
GB2508055B (en) * | 2012-08-01 | 2015-07-15 | Schlumberger Holdings | Submersible pump housing with seal bleed ports |
CN103147714B (zh) * | 2013-03-05 | 2015-06-17 | 中国海洋石油总公司 | 一种用于电潜泵采油井中的环空安全装置 |
CN107013179A (zh) * | 2017-06-13 | 2017-08-04 | 山东威德福高原人工举升装备有限公司 | 一种有杆采油系统油管内井下防喷装置及方法 |
US11686177B2 (en) * | 2021-10-08 | 2023-06-27 | Saudi Arabian Oil Company | Subsurface safety valve system and method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3040811A (en) * | 1959-04-23 | 1962-06-26 | Jersey Prod Res Co | Subsurface safety valve |
US3782461A (en) * | 1971-06-01 | 1974-01-01 | Camco Inc | Pressurized chamber well safety valve |
US3897825A (en) * | 1974-05-15 | 1975-08-05 | Camco Inc | Well testing apparatus |
US4086935A (en) * | 1975-08-15 | 1978-05-02 | Otis Engineering Corporation | Remote controlled tubing safety valve |
US4161219A (en) * | 1978-02-27 | 1979-07-17 | Camco, Incorporated | Piston actuated well safety valve |
US4193450A (en) * | 1978-11-13 | 1980-03-18 | Otis Engineering Corporation | Surface controlled subsurface safety valve |
US4334581A (en) * | 1980-09-12 | 1982-06-15 | Otis Engineering Corporation | Balanced area safety valve |
-
1984
- 1984-03-12 US US06/588,609 patent/US4495998A/en not_active Expired - Fee Related
-
1985
- 1985-03-04 GB GB08505480A patent/GB2155976B/en not_active Expired
- 1985-03-05 NO NO850874A patent/NO850874L/no unknown
- 1985-03-08 FR FR8503425A patent/FR2560926A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2560926A1 (fr) | 1985-09-13 |
GB2155976A (en) | 1985-10-02 |
GB8505480D0 (en) | 1985-04-03 |
US4495998A (en) | 1985-01-29 |
GB2155976B (en) | 1987-06-10 |
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