CN204646128U - 抗磨加重钻杆 - Google Patents
抗磨加重钻杆 Download PDFInfo
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- CN204646128U CN204646128U CN201520139108.9U CN201520139108U CN204646128U CN 204646128 U CN204646128 U CN 204646128U CN 201520139108 U CN201520139108 U CN 201520139108U CN 204646128 U CN204646128 U CN 204646128U
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- drill pipe
- heavy weight
- weight drill
- wear
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201520139108.9U CN204646128U (zh) | 2015-03-11 | 2015-03-11 | 抗磨加重钻杆 |
Applications Claiming Priority (1)
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CN201520139108.9U CN204646128U (zh) | 2015-03-11 | 2015-03-11 | 抗磨加重钻杆 |
Publications (1)
Publication Number | Publication Date |
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CN204646128U true CN204646128U (zh) | 2015-09-16 |
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CN201520139108.9U Expired - Fee Related CN204646128U (zh) | 2015-03-11 | 2015-03-11 | 抗磨加重钻杆 |
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CN (1) | CN204646128U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107461158A (zh) * | 2017-08-31 | 2017-12-12 | 山西风雷钻具有限公司 | 高强度摩擦焊加重钻杆 |
CN110628994A (zh) * | 2019-10-30 | 2019-12-31 | 澳普洛钻探工具(无锡)有限公司 | 一种密封性钻杆的生产工艺 |
-
2015
- 2015-03-11 CN CN201520139108.9U patent/CN204646128U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107461158A (zh) * | 2017-08-31 | 2017-12-12 | 山西风雷钻具有限公司 | 高强度摩擦焊加重钻杆 |
CN110628994A (zh) * | 2019-10-30 | 2019-12-31 | 澳普洛钻探工具(无锡)有限公司 | 一种密封性钻杆的生产工艺 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210715 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
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: 20150916 |