CN203531847U - High-pressure bypass safety valve for downhole testing - Google Patents
High-pressure bypass safety valve for downhole testing Download PDFInfo
- Publication number
- CN203531847U CN203531847U CN201320663698.6U CN201320663698U CN203531847U CN 203531847 U CN203531847 U CN 203531847U CN 201320663698 U CN201320663698 U CN 201320663698U CN 203531847 U CN203531847 U CN 203531847U
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- CN
- China
- Prior art keywords
- bypass
- holes
- splined mandrel
- high pressure
- urceolus
- 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.)
- Expired - Fee Related
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320663698.6U CN203531847U (en) | 2013-10-25 | 2013-10-25 | High-pressure bypass safety valve for downhole testing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201320663698.6U CN203531847U (en) | 2013-10-25 | 2013-10-25 | High-pressure bypass safety valve for downhole testing |
Publications (1)
Publication Number | Publication Date |
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CN203531847U true CN203531847U (en) | 2014-04-09 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201320663698.6U Expired - Fee Related CN203531847U (en) | 2013-10-25 | 2013-10-25 | High-pressure bypass safety valve for downhole testing |
Country Status (1)
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CN (1) | CN203531847U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
-
2013
- 2013-10-25 CN CN201320663698.6U patent/CN203531847U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104989322A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | Shear pin type bypass valve |
CN104989322B (en) * | 2015-07-17 | 2018-10-16 | 中国石油集团渤海钻探工程有限公司 | A kind of shearing pin type by-passing valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20151126 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: DOWNHOLE OPERATION COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: DOWNHOLE OPERATION COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20151025 |
|
EXPY | Termination of patent right or utility model |