GB8816575D0 - Well backsurging apparatus & method - Google Patents
Well backsurging apparatus & methodInfo
- Publication number
- GB8816575D0 GB8816575D0 GB888816575A GB8816575A GB8816575D0 GB 8816575 D0 GB8816575 D0 GB 8816575D0 GB 888816575 A GB888816575 A GB 888816575A GB 8816575 A GB8816575 A GB 8816575A GB 8816575 D0 GB8816575 D0 GB 8816575D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- backsurging
- well
- well backsurging
- backsurging apparatus
- Prior art date
- 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.)
- Pending
Links
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888816575A GB8816575D0 (en) | 1988-07-12 | 1988-07-12 | Well backsurging apparatus & method |
PCT/GB1989/000779 WO1990000668A1 (en) | 1988-07-12 | 1989-07-11 | Well backsurging apparatus and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888816575A GB8816575D0 (en) | 1988-07-12 | 1988-07-12 | Well backsurging apparatus & method |
Publications (1)
Publication Number | Publication Date |
---|---|
GB8816575D0 true GB8816575D0 (en) | 1988-08-17 |
Family
ID=10640311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB888816575A Pending GB8816575D0 (en) | 1988-07-12 | 1988-07-12 | Well backsurging apparatus & method |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB8816575D0 (en) |
WO (1) | WO1990000668A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO173750C (en) * | 1991-09-30 | 1994-01-26 | Wepco As | Circulating Equipment |
GB201514968D0 (en) | 2015-08-23 | 2015-10-07 | Weatherford Uk Ltd | Pressure operated apparatus and method |
CN109577912B (en) * | 2018-12-27 | 2024-03-01 | 中国石油天然气集团有限公司 | Blowout prevention tool in underbalanced lower oil pipe and one-pass underbalanced combined oil extraction method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2776015A (en) * | 1954-05-21 | 1957-01-01 | Exxon Research Engineering Co | Retrievable tubing plug |
US3889751A (en) * | 1974-02-01 | 1975-06-17 | Exxon Production Research Co | Subsurface safety valve |
US4142583A (en) * | 1977-09-02 | 1979-03-06 | Brieger Emmet F | Well tool pack-off with sinker bar release means |
US4220206A (en) * | 1979-01-22 | 1980-09-02 | Winkle Denzal W Van | Quick opening closure arrangement for well completions |
US4330039A (en) * | 1980-07-07 | 1982-05-18 | Geo Vann, Inc. | Pressure actuated vent assembly for slanted wellbores |
US4343357A (en) * | 1980-10-10 | 1982-08-10 | Yeates Robert D | Downhole surge tools |
US4339001A (en) * | 1980-10-14 | 1982-07-13 | Otis Engineering Corporation | Safety valve |
US4529038A (en) * | 1982-08-19 | 1985-07-16 | Geo Vann, Inc. | Differential vent and bar actuated circulating valve and method |
US4693314A (en) * | 1986-02-18 | 1987-09-15 | Halliburton Company | Low actuation pressure bar vent |
WO1987007925A1 (en) * | 1986-06-19 | 1987-12-30 | Phoenix Petroleum Services | Improvements relating to detonating heads |
-
1988
- 1988-07-12 GB GB888816575A patent/GB8816575D0/en active Pending
-
1989
- 1989-07-11 WO PCT/GB1989/000779 patent/WO1990000668A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO1990000668A1 (en) | 1990-01-25 |
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