CN203285391U - Pressure-differential oil jacket communication valve - Google Patents
Pressure-differential oil jacket communication valve Download PDFInfo
- Publication number
- CN203285391U CN203285391U CN201320259514XU CN201320259514U CN203285391U CN 203285391 U CN203285391 U CN 203285391U CN 201320259514X U CN201320259514X U CN 201320259514XU CN 201320259514 U CN201320259514 U CN 201320259514U CN 203285391 U CN203285391 U CN 203285391U
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- CN
- China
- Prior art keywords
- top connection
- oil jacket
- spool
- radial flow
- annular space
- 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.)
- Withdrawn - After Issue
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201320259514XU CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Applications Claiming Priority (1)
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CN201320259514XU CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Publications (1)
Publication Number | Publication Date |
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CN203285391U true CN203285391U (en) | 2013-11-13 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201320259514XU Withdrawn - After Issue CN203285391U (en) | 2013-05-14 | 2013-05-14 | Pressure-differential oil jacket communication valve |
Country Status (1)
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CN (1) | CN203285391U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104153740A (en) * | 2013-05-14 | 2014-11-19 | 天津大港油田钻采技术开发公司 | Differential pressure type oil sleeve communication valve |
CN108458124A (en) * | 2018-06-28 | 2018-08-28 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
-
2013
- 2013-05-14 CN CN201320259514XU patent/CN203285391U/en not_active Withdrawn - After Issue
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104153740A (en) * | 2013-05-14 | 2014-11-19 | 天津大港油田钻采技术开发公司 | Differential pressure type oil sleeve communication valve |
CN104153740B (en) * | 2013-05-14 | 2017-03-29 | 天津大港油田钻采技术开发公司 | Differential oil jacket coupling cock |
CN108458124A (en) * | 2018-06-28 | 2018-08-28 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
CN108458124B (en) * | 2018-06-28 | 2019-11-12 | 中国海洋石油集团有限公司 | A kind of sealing structure of downhole flow control valve |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: TIANJIN DAGANG INSTITUTE OF PETROLEUM ENGINEERING Free format text: FORMER NAME: TIANJIN DAGANG OIL FIELD DRILLING TECHNOLOGY DEVELOPMENT COMPANY |
|
CP01 | Change in the name or title of a patent holder |
Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Patentee after: Dagang Oil Field Group Co., Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. Patentee before: Dagang Oil Field Group Co., Ltd. |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20170329 |
|
AV01 | Patent right actively abandoned |