CN205743831U - 裸眼循环阀板装置 - Google Patents
裸眼循环阀板装置 Download PDFInfo
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- CN205743831U CN205743831U CN201620094792.8U CN201620094792U CN205743831U CN 205743831 U CN205743831 U CN 205743831U CN 201620094792 U CN201620094792 U CN 201620094792U CN 205743831 U CN205743831 U CN 205743831U
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- pipe nipple
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- polished rod
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Application Number | Priority Date | Filing Date | Title |
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CN201620094792.8U CN205743831U (zh) | 2016-01-29 | 2016-01-29 | 裸眼循环阀板装置 |
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CN201620094792.8U CN205743831U (zh) | 2016-01-29 | 2016-01-29 | 裸眼循环阀板装置 |
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CN205743831U true CN205743831U (zh) | 2016-11-30 |
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CN201620094792.8U Expired - Fee Related CN205743831U (zh) | 2016-01-29 | 2016-01-29 | 裸眼循环阀板装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107178347A (zh) * | 2017-07-03 | 2017-09-19 | 中国石油天然气股份有限公司 | 一种长效co2注气管柱及操作方法 |
CN108716389A (zh) * | 2018-08-17 | 2018-10-30 | 东营市瑞丰石油技术发展有限责任公司 | 阀板式边冲边下充填工具 |
CN111101893A (zh) * | 2019-12-28 | 2020-05-05 | 中海油能源发展股份有限公司 | 一种井下抽油泵安全阀 |
-
2016
- 2016-01-29 CN CN201620094792.8U patent/CN205743831U/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107178347A (zh) * | 2017-07-03 | 2017-09-19 | 中国石油天然气股份有限公司 | 一种长效co2注气管柱及操作方法 |
CN107178347B (zh) * | 2017-07-03 | 2019-12-06 | 中国石油天然气股份有限公司 | 一种长效co2注气管柱及操作方法 |
CN108716389A (zh) * | 2018-08-17 | 2018-10-30 | 东营市瑞丰石油技术发展有限责任公司 | 阀板式边冲边下充填工具 |
CN111101893A (zh) * | 2019-12-28 | 2020-05-05 | 中海油能源发展股份有限公司 | 一种井下抽油泵安全阀 |
CN111101893B (zh) * | 2019-12-28 | 2021-12-14 | 中海油能源发展股份有限公司 | 一种井下抽油泵安全阀 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: CNOOC Energy Development Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: Tianjin Branch of China Sea Prtroleum (China) Co., Ltd. Patentee before: China National Offshore Oil Corporation Co-patentee before: CNOOC Energy Development Co., Ltd. |
|
CP01 | Change in the name or title of a patent holder | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20210129 |
|
CF01 | Termination of patent right due to non-payment of annual fee |