CA2259680A1 - Rotating bop and method - Google Patents
Rotating bop and method Download PDFInfo
- Publication number
- CA2259680A1 CA2259680A1 CA 2259680 CA2259680A CA2259680A1 CA 2259680 A1 CA2259680 A1 CA 2259680A1 CA 2259680 CA2259680 CA 2259680 CA 2259680 A CA2259680 A CA 2259680A CA 2259680 A1 CA2259680 A1 CA 2259680A1
- Authority
- CA
- Canada
- Prior art keywords
- bladder
- rotating
- seal assembly
- latch
- rotating seal
- 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.)
- Granted
Links
Landscapes
- Earth Drilling (AREA)
Abstract
A rotating blowout preventer and method is disclosed that includes a flexible bladder that defines a pressure chamber radially outwardly of the bladder for direct activation of the bladder to allow for gas tight sealing along the variable profile of drill pipe and the irregular shape of the kelly. The pressure chamber for activating the bladder is preferably defined within the rotating seal assembly. As well, the rotating seal assembly includes both the bladder and the bearings. A pressure drop element is included within the hydraulic flow line through the rotating seal assembly so that the upper seal and bearing have a significantly reduced pressure drop for increased lifetime operation. The rotating seal assembly is hydraulically secured within the rotating blow-out preventer housing, preferably by remote control, by means of a preferred single cylindrical latch piston that moves upwardly and downwardly substantially parallel to the well bore axis. The latch piston wedgeably moves latch dogs radially inwardly to effect latching. After the latch piston is moved from the latch position, the latch dogs move radially outwardly as the rotating seal assembly is lifted from the rotating blow-out preventer housing as by a rig cat line to thereby effect quick change out of the bearings and/or the bladder.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8343698P | 1998-04-29 | 1998-04-29 | |
US60/083,436 | 1998-04-29 | ||
US09/178,006 US6059262A (en) | 1998-10-23 | 1998-10-23 | Valve operator and method |
US09/178,006 | 1998-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2259680A1 true CA2259680A1 (en) | 1999-10-29 |
CA2259680C CA2259680C (en) | 2002-08-13 |
Family
ID=26769307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2259680 Expired - Fee Related CA2259680C (en) | 1998-04-29 | 1999-01-18 | Rotating bop and method |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2259680C (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107355194A (en) * | 2017-08-30 | 2017-11-17 | 中联煤层气有限责任公司 | A kind of annular preventer |
CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
CN113833860A (en) * | 2021-09-23 | 2021-12-24 | 中煤科工集团重庆研究院有限公司 | Capsule sealed water braid |
CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
CN115012866A (en) * | 2022-06-17 | 2022-09-06 | 盘锦博瑞石油工程有限公司 | Rotary blowout preventer |
CN116641674A (en) * | 2023-07-27 | 2023-08-25 | 山东高原油气装备有限公司 | Petroleum casing pipe repairing device with polishing function and repairing method |
CN117948077A (en) * | 2024-03-27 | 2024-04-30 | 山西泰宝科技有限公司 | Rotary assembly sealing device of rotary blowout preventer |
-
1999
- 1999-01-18 CA CA 2259680 patent/CA2259680C/en not_active Expired - Fee Related
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107355194A (en) * | 2017-08-30 | 2017-11-17 | 中联煤层气有限责任公司 | A kind of annular preventer |
CN110439493A (en) * | 2019-09-20 | 2019-11-12 | 成都里尔斯石油科技有限公司 | Anti-lost sealing preventing spray head and blowout hookup |
CN113833860A (en) * | 2021-09-23 | 2021-12-24 | 中煤科工集团重庆研究院有限公司 | Capsule sealed water braid |
CN114396241A (en) * | 2022-03-28 | 2022-04-26 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
CN114396241B (en) * | 2022-03-28 | 2022-06-10 | 四川新为橡塑有限公司 | Double-layer sealed spherical rubber core and annular blowout preventer |
CN115012866A (en) * | 2022-06-17 | 2022-09-06 | 盘锦博瑞石油工程有限公司 | Rotary blowout preventer |
CN115012866B (en) * | 2022-06-17 | 2024-05-03 | 盘锦博瑞石油工程有限公司 | Rotary blowout preventer |
CN116641674A (en) * | 2023-07-27 | 2023-08-25 | 山东高原油气装备有限公司 | Petroleum casing pipe repairing device with polishing function and repairing method |
CN116641674B (en) * | 2023-07-27 | 2023-10-20 | 山东高原油气装备有限公司 | Petroleum casing pipe repairing device with polishing function and repairing method |
CN117948077A (en) * | 2024-03-27 | 2024-04-30 | 山西泰宝科技有限公司 | Rotary assembly sealing device of rotary blowout preventer |
Also Published As
Publication number | Publication date |
---|---|
CA2259680C (en) | 2002-08-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20190118 |