CN203531855U - 一种气举工作筒 - Google Patents
一种气举工作筒 Download PDFInfo
- Publication number
- CN203531855U CN203531855U CN201320559840.2U CN201320559840U CN203531855U CN 203531855 U CN203531855 U CN 203531855U CN 201320559840 U CN201320559840 U CN 201320559840U CN 203531855 U CN203531855 U CN 203531855U
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- gas
- lift
- lift valve
- working barrel
- guard chamber
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CN201320559840.2U CN203531855U (zh) | 2013-09-10 | 2013-09-10 | 一种气举工作筒 |
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CN201320559840.2U CN203531855U (zh) | 2013-09-10 | 2013-09-10 | 一种气举工作筒 |
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CN203531855U true CN203531855U (zh) | 2014-04-09 |
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CN201320559840.2U Expired - Fee Related CN203531855U (zh) | 2013-09-10 | 2013-09-10 | 一种气举工作筒 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114458256A (zh) * | 2021-11-10 | 2022-05-10 | 中国海洋石油集团有限公司 | 海上油田不动管柱管内封隔式气举工艺管柱及其使用方法 |
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2013
- 2013-09-10 CN CN201320559840.2U patent/CN203531855U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114458256A (zh) * | 2021-11-10 | 2022-05-10 | 中国海洋石油集团有限公司 | 海上油田不动管柱管内封隔式气举工艺管柱及其使用方法 |
CN114458256B (zh) * | 2021-11-10 | 2024-01-02 | 中国海洋石油集团有限公司 | 海上油田不动管柱管内封隔式气举工艺管柱及其使用方法 |
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Legal Events
Date | Code | Title | Description |
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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: Shen Jian Inventor after: Shi Yunfang Inventor after: Li Tianwei Inventor after: Yang Yongchao Inventor after: Gao Zhichao Inventor after: Wang Yueju Inventor after: Zhang Li Inventor after: Zhang Yanyan Inventor after: Wang Yong Inventor before: Shen Jian Inventor before: Shi Yunfang Inventor before: Li Tianwei |
|
COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: SHEN JIAN SHI YUNFANG LI TIANWEI TO: SHEN JIAN SHI YUNFANG LI TIANWEI YANGYONGCHAO GAO ZHICHAO WANG YUEJU ZHANG LI ZHANG YANYAN WANG YONG |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20150910 |
|
EXPY | Termination of patent right or utility model |