CN202578618U - 油井阻喷装置 - Google Patents
油井阻喷装置 Download PDFInfo
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- CN202578618U CN202578618U CN 201220232298 CN201220232298U CN202578618U CN 202578618 U CN202578618 U CN 202578618U CN 201220232298 CN201220232298 CN 201220232298 CN 201220232298 U CN201220232298 U CN 201220232298U CN 202578618 U CN202578618 U CN 202578618U
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- oil well
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220232298 CN202578618U (zh) | 2012-05-12 | 2012-05-12 | 油井阻喷装置 |
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CN 201220232298 CN202578618U (zh) | 2012-05-12 | 2012-05-12 | 油井阻喷装置 |
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CN202578618U true CN202578618U (zh) | 2012-12-05 |
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CN 201220232298 Expired - Fee Related CN202578618U (zh) | 2012-05-12 | 2012-05-12 | 油井阻喷装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103277064A (zh) * | 2013-03-31 | 2013-09-04 | 辽河石油勘探局职业技术学院石油技术开发服务中心 | 油井液压阻喷装置 |
CN103924939A (zh) * | 2014-05-08 | 2014-07-16 | 喻书华 | 钻具内防喷器抢接装置 |
-
2012
- 2012-05-12 CN CN 201220232298 patent/CN202578618U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103277064A (zh) * | 2013-03-31 | 2013-09-04 | 辽河石油勘探局职业技术学院石油技术开发服务中心 | 油井液压阻喷装置 |
CN103924939A (zh) * | 2014-05-08 | 2014-07-16 | 喻书华 | 钻具内防喷器抢接装置 |
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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: Yang Zhennian Inventor after: Zhang Lei Inventor after: Zhao Xiwei Inventor after: Chi Cheng Inventor after: Liu Jun Inventor after: Qiu Zhongxiang Inventor after: Wang Zihui Inventor after: Wang Yanquan Inventor after: Wang Qinghai Inventor after: Sun Wenyue Inventor after: Yang Kun Inventor after: Yan Yunxiang Inventor after: Ren Yudong Inventor after: Diao Zhenbin Inventor after: Zhang Piaoshi Inventor after: Wang Haiyuan Inventor after: Huang Yuenan Inventor after: Li Zheng Inventor after: Wang Pengfei Inventor after: Li Songsong Inventor after: Xu Jingfu Inventor before: Yang Zhennian Inventor before: Zhang Lei Inventor before: Zhao Xiwei Inventor before: Chi Cheng Inventor before: Liu Jun Inventor before: Qiu Zhongxiang Inventor before: Wang Zihui Inventor before: Wang Yanquan Inventor before: Wang Qinghai Inventor before: Sun Wenyue Inventor before: Yang Kun Inventor before: Yan Yunxiang Inventor before: Ren Yudong Inventor before: Diao Zhenbin Inventor before: Zhang Piaoshi Inventor before: Wang Haiyuan Inventor before: Huang Yuenan Inventor before: Li Zheng Inventor before: Wang Pengfei Inventor before: Li Songsong Inventor before: Xu Jingfu |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130512 |