CN2556353Y - 软煤层高瓦斯深孔钻机用钻杆 - Google Patents
软煤层高瓦斯深孔钻机用钻杆 Download PDFInfo
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- CN2556353Y CN2556353Y CN 01267191 CN01267191U CN2556353Y CN 2556353 Y CN2556353 Y CN 2556353Y CN 01267191 CN01267191 CN 01267191 CN 01267191 U CN01267191 U CN 01267191U CN 2556353 Y CN2556353 Y CN 2556353Y
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- drilling rod
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- deep hole
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Application Number | Priority Date | Filing Date | Title |
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CN 01267191 CN2556353Y (zh) | 2001-10-27 | 2001-10-27 | 软煤层高瓦斯深孔钻机用钻杆 |
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CN 01267191 CN2556353Y (zh) | 2001-10-27 | 2001-10-27 | 软煤层高瓦斯深孔钻机用钻杆 |
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CN2556353Y true CN2556353Y (zh) | 2003-06-18 |
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CN 01267191 Expired - Lifetime CN2556353Y (zh) | 2001-10-27 | 2001-10-27 | 软煤层高瓦斯深孔钻机用钻杆 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101581217B (zh) * | 2008-05-16 | 2012-08-15 | 中国科学院力学研究所 | 煤层气的压力/含量随钻测量装置及方法 |
CN101581218B (zh) * | 2008-05-16 | 2012-09-05 | 中国科学院力学研究所 | 煤层气参数的简便随钻测量装置及方法 |
CN103939012A (zh) * | 2014-04-28 | 2014-07-23 | 中国矿业大学(北京) | 高应力松软突出厚煤层大直径钻孔装置 |
-
2001
- 2001-10-27 CN CN 01267191 patent/CN2556353Y/zh not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101581217B (zh) * | 2008-05-16 | 2012-08-15 | 中国科学院力学研究所 | 煤层气的压力/含量随钻测量装置及方法 |
CN101581218B (zh) * | 2008-05-16 | 2012-09-05 | 中国科学院力学研究所 | 煤层气参数的简便随钻测量装置及方法 |
CN103939012A (zh) * | 2014-04-28 | 2014-07-23 | 中国矿业大学(北京) | 高应力松软突出厚煤层大直径钻孔装置 |
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Legal Events
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C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20111027 Granted publication date: 20030618 |
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Addressee: Cui Gangming Document name: Notification of Acceptance of Request for Invalidation |
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DD01 | Delivery of document by public notice |
Addressee: Cui Gangming Document name: Notification of Expiration of Patent Right Duration |
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DD01 | Delivery of document by public notice |
Addressee: Cui Gangming Document name: Notification of Acceptance of Request for Invalidation |
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DD01 | Delivery of document by public notice |
Addressee: Cui Gangming Document name: Notification of Passing Examination on Formalities |