CN201786334U - 负压采气工艺管柱 - Google Patents
负压采气工艺管柱 Download PDFInfo
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- CN201786334U CN201786334U CN2010205168345U CN201020516834U CN201786334U CN 201786334 U CN201786334 U CN 201786334U CN 2010205168345 U CN2010205168345 U CN 2010205168345U CN 201020516834 U CN201020516834 U CN 201020516834U CN 201786334 U CN201786334 U CN 201786334U
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CN2010205168345U CN201786334U (zh) | 2010-09-06 | 2010-09-06 | 负压采气工艺管柱 |
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CN2010205168345U CN201786334U (zh) | 2010-09-06 | 2010-09-06 | 负压采气工艺管柱 |
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CN201786334U true CN201786334U (zh) | 2011-04-06 |
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CN2010205168345U Expired - Lifetime CN201786334U (zh) | 2010-09-06 | 2010-09-06 | 负压采气工艺管柱 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110617034A (zh) * | 2019-09-16 | 2019-12-27 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种永久式完井管柱的隔离气举方法 |
CN110630198A (zh) * | 2019-09-16 | 2019-12-31 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种隔离式气举封隔器 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110617034A (zh) * | 2019-09-16 | 2019-12-27 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种永久式完井管柱的隔离气举方法 |
CN110630198A (zh) * | 2019-09-16 | 2019-12-31 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种隔离式气举封隔器 |
CN110617034B (zh) * | 2019-09-16 | 2020-05-05 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种永久式完井管柱的隔离气举方法 |
CN110630198B (zh) * | 2019-09-16 | 2020-05-05 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | 一种隔离式气举封隔器 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C53 | Correction of patent for invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhang Yanhua Inventor after: Xia Xinzhong Inventor after: Cui Zhiqiang Inventor after: Chen Guomin Inventor after: Guo Hongjun Inventor before: Wang Yanjun Inventor before: Xia Xinzhong Inventor before: Cui Zhiqiang Inventor before: Chen Guomin Inventor before: Guo Hongjun |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG YANJUN XIA XINZHONG CUI ZHIQIANG CHEN GUOMIN GUO HONGJUN TO: ZHANG YANHUA XIA XINZHONG CUI ZHIQIANG CHEN GUOMIN GUO HONGJUN |
|
CX01 | Expiry of patent term |
Granted publication date: 20110406 |
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CX01 | Expiry of patent term |