CN202249799U - 钻具标记结构 - Google Patents
钻具标记结构 Download PDFInfo
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- CN202249799U CN202249799U CN2011203568545U CN201120356854U CN202249799U CN 202249799 U CN202249799 U CN 202249799U CN 2011203568545 U CN2011203568545 U CN 2011203568545U CN 201120356854 U CN201120356854 U CN 201120356854U CN 202249799 U CN202249799 U CN 202249799U
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2011203568545U CN202249799U (zh) | 2011-09-22 | 2011-09-22 | 钻具标记结构 |
Applications Claiming Priority (1)
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CN2011203568545U CN202249799U (zh) | 2011-09-22 | 2011-09-22 | 钻具标记结构 |
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CN202249799U true CN202249799U (zh) | 2012-05-30 |
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CN2011203568545U Expired - Fee Related CN202249799U (zh) | 2011-09-22 | 2011-09-22 | 钻具标记结构 |
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CN (1) | CN202249799U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103982145A (zh) * | 2014-05-19 | 2014-08-13 | 西南石油大学 | 一种可识别的石油天然气钻井用钻杆及钻井设备 |
CN105443048A (zh) * | 2015-12-25 | 2016-03-30 | 贵州高峰石油机械股份有限公司 | 一种钻具印记的保护方法及装置 |
-
2011
- 2011-09-22 CN CN2011203568545U patent/CN202249799U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103982145A (zh) * | 2014-05-19 | 2014-08-13 | 西南石油大学 | 一种可识别的石油天然气钻井用钻杆及钻井设备 |
CN105443048A (zh) * | 2015-12-25 | 2016-03-30 | 贵州高峰石油机械股份有限公司 | 一种钻具印记的保护方法及装置 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Shanghai Marine Petroleum Bureau Third marine geological survey team Co., Ltd. Patentee after: Sinopec Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Shanghai Offshore Petroleum Bureau No.3 Offshore Geological Survey Group Patentee before: Sinopec Corp. |
|
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: 20120530 Termination date: 20190922 |