JPS4947934A - - Google Patents
Info
- Publication number
- JPS4947934A JPS4947934A JP48004892A JP489273A JPS4947934A JP S4947934 A JPS4947934 A JP S4947934A JP 48004892 A JP48004892 A JP 48004892A JP 489273 A JP489273 A JP 489273A JP S4947934 A JPS4947934 A JP S4947934A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
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
- E21B34/101—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with means for equalizing fluid pressure above and below the valve
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- 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)
- Taps Or Cocks (AREA)
- Fluid-Driven Valves (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23625672A | 1972-03-20 | 1972-03-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4947934A true JPS4947934A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-05-09 |
| JPS5439321B2 JPS5439321B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-11-27 |
Family
ID=22888757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP489273A Expired JPS5439321B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-03-20 | 1973-01-06 |
Country Status (6)
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830297A (en) * | 1973-01-08 | 1974-08-20 | Baker Oil Tools Inc | Sub-surface safety valve with improved balancing valve means |
| US3971438A (en) * | 1975-03-03 | 1976-07-27 | Baker Oil Tools, Inc. | Wireline safety valve with split ball |
| US4294315A (en) * | 1978-11-13 | 1981-10-13 | Otis Engineering Corporation | Landing nipple |
| US4651829A (en) * | 1985-12-13 | 1987-03-24 | Halliburton Company | Subsurface control valve |
| US4807700A (en) * | 1987-09-18 | 1989-02-28 | Cameron Iron Works Usa, Inc. | Wireline downhole annulus valve |
| GB2267920B (en) * | 1992-06-17 | 1995-12-06 | Petroleum Eng Services | Improvements in or relating to well-head structures |
| GB9511386D0 (en) * | 1995-06-06 | 1995-08-02 | Petroleum Eng Services | Improvements relating to ball valves |
| GB2375122B (en) * | 2001-03-14 | 2003-09-24 | Schlumberger Holdings | Activation of valves in tool strings |
| US6666271B2 (en) | 2001-11-01 | 2003-12-23 | Weatherford/Lamb, Inc. | Curved flapper and seat for a subsurface saftey valve |
| US10344562B2 (en) * | 2016-04-05 | 2019-07-09 | Weatherford Technology Holdings, Llc | Riser annular isolation device |
| BR112019025668B1 (pt) * | 2017-06-08 | 2024-03-12 | Superior Energy Services, L.L.C | Válvula de segurança de subsuperfície |
| GB2571296A (en) * | 2018-02-22 | 2019-08-28 | Aker Solutions Ltd | Directional control valve |
| CN108999589B (zh) * | 2018-07-26 | 2021-11-23 | 中国石油大学(华东) | 一种修井作业井下防喷器 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3007669A (en) * | 1956-09-13 | 1961-11-07 | Otis Eng Co | Valve |
| US3094170A (en) * | 1960-05-31 | 1963-06-18 | Continental Oil Co | Subsurface well tubing safety valve |
| US3313350A (en) * | 1964-05-14 | 1967-04-11 | Jr John S Page | Tubing and annulus flow control apparatus |
| US3310114A (en) * | 1964-07-01 | 1967-03-21 | Otis Eng Co | Pressure operated safety valve |
| US3494421A (en) * | 1965-11-29 | 1970-02-10 | Otis Eng Corp | Method of installing a wellhead system |
| US3675720A (en) * | 1970-07-08 | 1972-07-11 | Otis Eng Corp | Well flow control system and method |
| US3633669A (en) * | 1970-08-24 | 1972-01-11 | Exxon Production Research Co | Apparatus for running in and operation of valves and the like |
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1972
- 1972-03-20 US US00236256A patent/US3796257A/en not_active Expired - Lifetime
- 1972-12-29 IT IT55208/72A patent/IT974455B/it active
-
1973
- 1973-01-06 JP JP489273A patent/JPS5439321B2/ja not_active Expired
- 1973-01-29 CA CA162,266A patent/CA965698A/en not_active Expired
- 1973-01-30 GB GB471973A patent/GB1385444A/en not_active Expired
- 1973-02-12 FR FR7304843A patent/FR2176681B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2176681A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-11-02 |
| FR2176681B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1981-04-10 |
| DE2313357B2 (de) | 1976-10-14 |
| IT974455B (it) | 1974-06-20 |
| US3796257A (en) | 1974-03-12 |
| GB1385444A (en) | 1975-02-26 |
| DE2313357A1 (de) | 1973-10-04 |
| CA965698A (en) | 1975-04-08 |
| JPS5439321B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1979-11-27 |