SG55790G - Annulus pressure responsive downhole tool - Google Patents
Annulus pressure responsive downhole toolInfo
- Publication number
- SG55790G SG55790G SG557/90A SG55790A SG55790G SG 55790 G SG55790 G SG 55790G SG 557/90 A SG557/90 A SG 557/90A SG 55790 A SG55790 A SG 55790A SG 55790 G SG55790 G SG 55790G
- Authority
- SG
- Singapore
- Prior art keywords
- downhole tool
- pressure responsive
- annulus pressure
- responsive downhole
- annulus
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
- E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
-
- 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
- E21B34/108—Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole with time delay systems, e.g. hydraulic impedance mechanisms
-
- 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/001—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells specially adapted for underwater installations
-
- 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)
- Safety Valves (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/533,701 US4489786A (en) | 1983-09-19 | 1983-09-19 | Low pressure responsive downhole tool with differential pressure holding means |
US06/533,901 US4515219A (en) | 1983-09-19 | 1983-09-19 | Low pressure responsive downhole tool with floating shoe retarding means |
US06/533,835 US4537258A (en) | 1983-09-19 | 1983-09-19 | Low pressure responsive downhole tool |
US06/533,834 US4557333A (en) | 1983-09-19 | 1983-09-19 | Low pressure responsive downhole tool with cam actuated relief valve |
Publications (1)
Publication Number | Publication Date |
---|---|
SG55790G true SG55790G (en) | 1990-09-07 |
Family
ID=27504643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG557/90A SG55790G (en) | 1983-09-19 | 1990-07-17 | Annulus pressure responsive downhole tool |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0136146B1 (de) |
DE (1) | DE3481855D1 (de) |
SG (1) | SG55790G (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69226903T2 (de) * | 1991-06-14 | 1999-04-15 | Baker Hughes Inc | Druckmittelbetätigtes Bohrlochwerkzeugsystem |
GB2377234B (en) * | 2001-07-05 | 2005-09-28 | Smith International | Multi-cycle downhole apparatus |
US7766086B2 (en) | 2007-06-08 | 2010-08-03 | Bj Services Company Llc | Fluid actuated circulating sub |
CN110863796B (zh) * | 2019-12-11 | 2023-11-07 | 贵州航天凯山石油仪器有限公司 | 一种密封段电动泄压方法及装置 |
CN114961643B (zh) * | 2022-06-01 | 2023-05-23 | 西南石油大学 | 一种释放套管环空圈闭压力的可恢复式泄压装置及方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858649A (en) * | 1973-02-26 | 1975-01-07 | Halliburton Co | Apparatus for testing oil wells using annulus pressure |
US4113012A (en) * | 1977-10-27 | 1978-09-12 | Halliburton Company | Reclosable circulation valve for use in oil well testing |
US4109725A (en) * | 1977-10-27 | 1978-08-29 | Halliburton Company | Self adjusting liquid spring operating apparatus and method for use in an oil well valve |
-
1984
- 1984-09-18 EP EP84306365A patent/EP0136146B1/de not_active Expired - Lifetime
- 1984-09-18 DE DE8484306365T patent/DE3481855D1/de not_active Expired - Fee Related
-
1990
- 1990-07-17 SG SG557/90A patent/SG55790G/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3481855D1 (de) | 1990-05-10 |
EP0136146A2 (de) | 1985-04-03 |
EP0136146B1 (de) | 1990-04-04 |
EP0136146A3 (en) | 1988-01-20 |
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