CN206174897U - 一种井底反循环负压发生器 - Google Patents
一种井底反循环负压发生器 Download PDFInfo
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- CN206174897U CN206174897U CN201621079543.8U CN201621079543U CN206174897U CN 206174897 U CN206174897 U CN 206174897U CN 201621079543 U CN201621079543 U CN 201621079543U CN 206174897 U CN206174897 U CN 206174897U
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CN201621079543.8U CN206174897U (zh) | 2016-09-26 | 2016-09-26 | 一种井底反循环负压发生器 |
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CN201621079543.8U CN206174897U (zh) | 2016-09-26 | 2016-09-26 | 一种井底反循环负压发生器 |
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CN206174897U true CN206174897U (zh) | 2017-05-17 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107448160A (zh) * | 2017-08-08 | 2017-12-08 | 中国石油大学(北京) | 反循环钻井装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107448160A (zh) * | 2017-08-08 | 2017-12-08 | 中国石油大学(北京) | 反循环钻井装置 |
CN107448160B (zh) * | 2017-08-08 | 2023-08-15 | 中国石油大学(北京) | 反循环钻井装置 |
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GR01 | Patent grant | ||
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180723 Address after: 100028 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Co-patentee after: Drilling Research Institute of Zhongyuan Petroleum Engineering Co., Ltd. Sinopec Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Co-patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING CO., LTD. Address before: 100028 Chaoyang District, Beijing Hui Xin Street 6, Twelfth level. Co-patentee before: Drilling Research Institute of Zhongyuan Petroleum Engineering Co., Ltd. Sinopec Patentee before: SINOPEC OILFIELD SERVICE CORPORATION |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210922 Address after: 100027 Chaoyangmen North Street, Chaoyang District, Chaoyang District, Beijing Patentee after: SINOPEC Group Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: DRILLING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. Address before: 100028 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: DRILLING ENGINEERING TECHNOLOGY RESEARCH INSTITUTE OF SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC ZHONGYUAN PETROLEUM ENGINEERING Co.,Ltd. |