CN202673234U - 一种改良结构的钻具回压阀 - Google Patents
一种改良结构的钻具回压阀 Download PDFInfo
- Publication number
- CN202673234U CN202673234U CN 201220173323 CN201220173323U CN202673234U CN 202673234 U CN202673234 U CN 202673234U CN 201220173323 CN201220173323 CN 201220173323 CN 201220173323 U CN201220173323 U CN 201220173323U CN 202673234 U CN202673234 U CN 202673234U
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- Prior art keywords
- valve body
- fairlead
- drilling tool
- sealing
- pressure valve
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- 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.)
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Application Number | Priority Date | Filing Date | Title |
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CN 201220173323 CN202673234U (zh) | 2012-04-23 | 2012-04-23 | 一种改良结构的钻具回压阀 |
Applications Claiming Priority (1)
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CN 201220173323 CN202673234U (zh) | 2012-04-23 | 2012-04-23 | 一种改良结构的钻具回压阀 |
Publications (1)
Publication Number | Publication Date |
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CN202673234U true CN202673234U (zh) | 2013-01-16 |
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CN 201220173323 Expired - Lifetime CN202673234U (zh) | 2012-04-23 | 2012-04-23 | 一种改良结构的钻具回压阀 |
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CN (1) | CN202673234U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106401514A (zh) * | 2016-12-15 | 2017-02-15 | 成都市卓新实业有限公司 | 一种自灌浆回压凡尔 |
CN107503711A (zh) * | 2017-08-23 | 2017-12-22 | 东营市友佳石油科技有限公司 | 一种套管完井用箭型回压阀及方法 |
-
2012
- 2012-04-23 CN CN 201220173323 patent/CN202673234U/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106401514A (zh) * | 2016-12-15 | 2017-02-15 | 成都市卓新实业有限公司 | 一种自灌浆回压凡尔 |
CN106401514B (zh) * | 2016-12-15 | 2019-05-21 | 成都市卓新实业有限公司 | 一种自灌浆回压凡尔 |
CN107503711A (zh) * | 2017-08-23 | 2017-12-22 | 东营市友佳石油科技有限公司 | 一种套管完井用箭型回压阀及方法 |
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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: 20150928 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Shengli Petroleum Management Bureau Drilling Engineering Company of China Petrochemical Corporation |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130116 |