CN205243476U - 一种新型煤层气排采设备 - Google Patents
一种新型煤层气排采设备 Download PDFInfo
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CN201520707431.1U CN205243476U (zh) | 2015-09-14 | 2015-09-14 | 一种新型煤层气排采设备 |
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CN205243476U true CN205243476U (zh) | 2016-05-18 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089576A (zh) * | 2015-09-14 | 2015-11-25 | 中国石油集团渤海石油装备制造有限公司 | 一种煤层气排采方法及其设备 |
CN110388226A (zh) * | 2019-07-23 | 2019-10-29 | 中石油煤层气有限责任公司 | 一种煤层气井负压排采控制装置和*** |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089576A (zh) * | 2015-09-14 | 2015-11-25 | 中国石油集团渤海石油装备制造有限公司 | 一种煤层气排采方法及其设备 |
CN110388226A (zh) * | 2019-07-23 | 2019-10-29 | 中石油煤层气有限责任公司 | 一种煤层气井负压排采控制装置和*** |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201026 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Patentee after: HG PUMPING UNIT Co.,Ltd. Address before: 300457, Tianjin, Tanggu Development Zone, No. 19 West Ring Road, Tianjin Binhai service outsourcing industry park, building 3 Patentee before: CNPC BOHAI EQUIPMENT MANUFACTURING Co.,Ltd. Patentee before: HG PUMPING UNIT Co.,Ltd. |
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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: 20160518 Termination date: 20210914 |