CN202451097U - 水平井水平段差动液压增力器 - Google Patents
水平井水平段差动液压增力器 Download PDFInfo
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- CN202451097U CN202451097U CN2012200772569U CN201220077256U CN202451097U CN 202451097 U CN202451097 U CN 202451097U CN 2012200772569 U CN2012200772569 U CN 2012200772569U CN 201220077256 U CN201220077256 U CN 201220077256U CN 202451097 U CN202451097 U CN 202451097U
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CN2012200772569U CN202451097U (zh) | 2012-03-02 | 2012-03-02 | 水平井水平段差动液压增力器 |
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CN2012200772569U CN202451097U (zh) | 2012-03-02 | 2012-03-02 | 水平井水平段差动液压增力器 |
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CN202451097U true CN202451097U (zh) | 2012-09-26 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104234654A (zh) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | 一种井下液压震击解卡装置 |
CN104514507B (zh) * | 2013-09-27 | 2017-03-08 | 中国石油化工集团公司 | 液压助力打捞工具 |
CN111911103A (zh) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | 一种水力液压增力器及使用方法 |
CN112727394A (zh) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | 连续油管液压修井管柱及方法 |
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2012
- 2012-03-02 CN CN2012200772569U patent/CN202451097U/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104514507B (zh) * | 2013-09-27 | 2017-03-08 | 中国石油化工集团公司 | 液压助力打捞工具 |
CN104234654A (zh) * | 2014-09-12 | 2014-12-24 | 崔泽庚 | 一种井下液压震击解卡装置 |
CN112727394A (zh) * | 2019-10-28 | 2021-04-30 | 中国石油化工股份有限公司 | 连续油管液压修井管柱及方法 |
CN111911103A (zh) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | 一种水力液压增力器及使用方法 |
CN111911103B (zh) * | 2020-08-11 | 2023-10-20 | 中国石油天然气集团有限公司 | 一种水力液压增力器及使用方法 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: 201206 Shanghai Pudong New Area City Jinxiang road 225 Lane 11, building 2, room 1932 Patentee after: Shanghai Witsun Jetdrill Enhancement Services Co., Ltd. Address before: 201201 Pudong New Area East Road, No. 6111, Shanghai Patentee before: Shanghai Witsun Jetdrill Enhancement Services Co., Ltd. |
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DD01 | Delivery of document by public notice | ||
DD01 | Delivery of document by public notice |
Addressee: Shanghai Witsun Jetdrill Enhancement Services Co., Ltd. Document name: Notification to Pay the Fees |
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DD01 | Delivery of document by public notice | ||
DD01 | Delivery of document by public notice |
Addressee: Shanghai Witsun Jetdrill Enhancement Services Co., Ltd. Document name: Notification of Termination of Patent Right |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20180302 |