RO71655A - Dispozitiv de siguranta - Google Patents
Dispozitiv de sigurantaInfo
- Publication number
- RO71655A RO71655A RO7913674A RO7913674A RO71655A RO 71655 A RO71655 A RO 71655A RO 7913674 A RO7913674 A RO 7913674A RO 7913674 A RO7913674 A RO 7913674A RO 71655 A RO71655 A RO 71655A
- Authority
- RO
- Romania
- Prior art keywords
- safety device
- safety
- Prior art date
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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86928—Sequentially progressive opening or closing of plural valves
- Y10T137/86936—Pressure equalizing or auxiliary shunt flow
Landscapes
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Taps Or Cocks (AREA)
- Mechanically-Actuated Valves (AREA)
- Multiple-Way Valves (AREA)
- Check Valves (AREA)
- Detergent Compositions (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37035473 US3868995A (en) | 1973-06-15 | 1973-06-15 | Sub-surface safety valve |
Publications (1)
Publication Number | Publication Date |
---|---|
RO71655A true RO71655A (ro) | 1982-05-10 |
Family
ID=23459272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO7913674A RO71655A (ro) | 1973-06-15 | 1974-06-12 | Dispozitiv de siguranta |
Country Status (10)
Country | Link |
---|---|
US (1) | US3868995A (it) |
JP (1) | JPS5442323B2 (it) |
CA (1) | CA997676A (it) |
DE (2) | DE2462473C3 (it) |
FR (1) | FR2233547A1 (it) |
GB (2) | GB1461642A (it) |
IT (1) | IT1013232B (it) |
NO (2) | NO140115C (it) |
RO (1) | RO71655A (it) |
SU (1) | SU641876A3 (it) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971438A (en) * | 1975-03-03 | 1976-07-27 | Baker Oil Tools, Inc. | Wireline safety valve with split ball |
US4036296A (en) * | 1975-05-23 | 1977-07-19 | Hydril Company | Subsurface well apparatus |
US3993136A (en) * | 1975-08-25 | 1976-11-23 | Hydril Company | Apparatus for operating a closure element of a subsurface safety valve and method of using same |
US4062406A (en) * | 1976-10-15 | 1977-12-13 | Baker International Corporation | Valve and lubricator apparatus |
US4149698A (en) * | 1977-04-13 | 1979-04-17 | Otis Engineering Corporation | Surface controlled subsurface safety valve |
US4144937A (en) * | 1977-12-19 | 1979-03-20 | Halliburton Company | Valve closing method and apparatus for use with an oil well valve |
US4214606A (en) * | 1978-05-08 | 1980-07-29 | Otis Engineering Corporation | Subsurface safety valve |
US4340088A (en) * | 1980-06-09 | 1982-07-20 | Daniel Industries, Inc. | Pressure balanced safety valve for wells and flow lines |
US4476933A (en) * | 1983-04-11 | 1984-10-16 | Baker Oil Tools, Inc. | Lubricator valve apparatus |
US4552219A (en) * | 1983-10-05 | 1985-11-12 | Hydril Company | Subsurface safety valve |
US4706933A (en) * | 1985-09-27 | 1987-11-17 | Sukup Richard A | Oil and gas well safety valve |
US5052657A (en) * | 1990-11-02 | 1991-10-01 | Shaw Industries, Ltd. | Ball valve |
GB9117119D0 (en) * | 1991-08-08 | 1991-09-25 | Exploration And Production Nor | Tubing test valve |
US6079497A (en) * | 1997-06-03 | 2000-06-27 | Camco International Inc. | Pressure equalizing safety valve for subterranean wells |
US6283217B1 (en) | 1998-08-06 | 2001-09-04 | Schlumberger Technology Corp. | Axial equalizing valve |
GB2345076B (en) | 1998-12-22 | 2001-06-20 | Camco Int | Pilot-operated pressure-equalizing mechanism for subsurface valve |
GB2368079B (en) * | 2000-10-18 | 2005-07-27 | Renovus Ltd | Well control |
US8875810B2 (en) * | 2006-03-02 | 2014-11-04 | Baker Hughes Incorporated | Hole enlargement drilling device and methods for using same |
US8225871B2 (en) * | 2006-11-09 | 2012-07-24 | Baker Hughes Incorporated | Bidirectional sealing mechanically shifted ball valve for downhole use |
US8534361B2 (en) * | 2009-10-07 | 2013-09-17 | Baker Hughes Incorporated | Multi-stage pressure equalization valve assembly for subterranean valves |
US8336628B2 (en) * | 2009-10-20 | 2012-12-25 | Baker Hughes Incorporated | Pressure equalizing a ball valve through an upper seal bypass |
CN102877814A (zh) * | 2012-10-18 | 2013-01-16 | 蒙善祥 | 具有自控、手控双控功能的复式密封旋塞阀 |
BR112015017036A2 (pt) * | 2013-02-25 | 2017-07-11 | Halliburton Energy Services Inc | válvula de esfera e método |
CA2936561C (en) * | 2013-06-21 | 2018-03-13 | Tam International, Inc. | Hydraulic anchor for downhole packer |
CN105178912B (zh) * | 2014-06-18 | 2018-03-30 | 中国石油化工股份有限公司 | 一种钻具用旁通阀 |
GB2543077B (en) * | 2015-10-08 | 2021-12-22 | Welleng Science & Tech Ltd | Downhole valve |
RU2704161C1 (ru) * | 2018-11-29 | 2019-10-24 | Общество с ограниченной ответственностью "Газпром 335" | Верхний изолирующий клапан |
WO2021054939A1 (en) * | 2019-09-17 | 2021-03-25 | Halliburton Energy Services, Inc. | Double acting boost arrangement |
US20230142178A1 (en) * | 2021-11-06 | 2023-05-11 | Danny T. Williams | Valve apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3310114A (en) * | 1964-07-01 | 1967-03-21 | Otis Eng Co | Pressure operated safety valve |
US3543793A (en) * | 1965-01-29 | 1970-12-01 | Otis Eng Corp | Well tools |
US3703193A (en) * | 1970-12-28 | 1972-11-21 | Otis Eng Corp | Valves |
US3741249A (en) * | 1971-03-22 | 1973-06-26 | Baker Oil Tools Inc | Ball valve with resilient seal |
-
1973
- 1973-06-15 US US37035473 patent/US3868995A/en not_active Expired - Lifetime
-
1974
- 1974-03-19 NO NO740978A patent/NO140115C/no unknown
- 1974-03-29 FR FR7411031A patent/FR2233547A1/fr not_active Withdrawn
- 1974-04-16 CA CA197,585A patent/CA997676A/en not_active Expired
- 1974-04-18 GB GB5483474A patent/GB1461642A/en not_active Expired
- 1974-04-18 GB GB1691474A patent/GB1461641A/en not_active Expired
- 1974-05-11 JP JP5276474A patent/JPS5442323B2/ja not_active Expired
- 1974-05-24 IT IT5119874A patent/IT1013232B/it active
- 1974-06-12 RO RO7913674A patent/RO71655A/ro unknown
- 1974-06-14 DE DE2462473A patent/DE2462473C3/de not_active Expired
- 1974-06-14 DE DE2428804A patent/DE2428804C3/de not_active Expired
- 1974-07-14 SU SU742034345A patent/SU641876A3/ru active
-
1978
- 1978-12-05 NO NO784088A patent/NO784088L/no unknown
Also Published As
Publication number | Publication date |
---|---|
NO140115B (no) | 1979-03-26 |
GB1461642A (en) | 1977-01-13 |
NO740978L (it) | 1975-01-13 |
JPS5442323B2 (it) | 1979-12-13 |
DE2462473A1 (de) | 1977-05-12 |
GB1461641A (en) | 1977-01-13 |
FR2233547A1 (it) | 1975-01-10 |
DE2428804B2 (de) | 1978-08-17 |
DE2428804C3 (de) | 1979-04-12 |
DE2428804A1 (de) | 1975-01-09 |
CA997676A (en) | 1976-09-28 |
US3868995A (en) | 1975-03-04 |
NO784088L (no) | 1974-12-12 |
NO140115C (no) | 1979-07-04 |
DE2462473C3 (de) | 1980-10-30 |
DE2462473B2 (de) | 1980-03-06 |
SU641876A3 (ru) | 1979-01-05 |
IT1013232B (it) | 1977-03-30 |
JPS5016923A (it) | 1975-02-22 |
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