CN201448070U - 宽叶片可夹持式螺旋钻杆 - Google Patents
宽叶片可夹持式螺旋钻杆 Download PDFInfo
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- CN201448070U CN201448070U CN2009200324698U CN200920032469U CN201448070U CN 201448070 U CN201448070 U CN 201448070U CN 2009200324698 U CN2009200324698 U CN 2009200324698U CN 200920032469 U CN200920032469 U CN 200920032469U CN 201448070 U CN201448070 U CN 201448070U
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- blade
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- drilling rod
- helical blade
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Application Number | Priority Date | Filing Date | Title |
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CN2009200324698U CN201448070U (zh) | 2009-04-03 | 2009-04-03 | 宽叶片可夹持式螺旋钻杆 |
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CN2009200324698U CN201448070U (zh) | 2009-04-03 | 2009-04-03 | 宽叶片可夹持式螺旋钻杆 |
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CN201448070U true CN201448070U (zh) | 2010-05-05 |
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CN2009200324698U Expired - Lifetime CN201448070U (zh) | 2009-04-03 | 2009-04-03 | 宽叶片可夹持式螺旋钻杆 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102839927A (zh) * | 2012-10-12 | 2012-12-26 | 重庆大学 | 高压水密封双动力螺旋钻杆 |
CN110242228A (zh) * | 2019-07-17 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | 整体式宽翼片螺旋钻杆 |
-
2009
- 2009-04-03 CN CN2009200324698U patent/CN201448070U/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102839927A (zh) * | 2012-10-12 | 2012-12-26 | 重庆大学 | 高压水密封双动力螺旋钻杆 |
CN102839927B (zh) * | 2012-10-12 | 2015-07-08 | 重庆大学 | 高压水密封双动力螺旋钻杆 |
CN110242228A (zh) * | 2019-07-17 | 2019-09-17 | 邹城兖矿泰德工贸有限公司 | 整体式宽翼片螺旋钻杆 |
CN110242228B (zh) * | 2019-07-17 | 2024-01-16 | 山东兖能泰德重工有限公司 | 整体式宽翼片螺旋钻杆 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Free format text: FORMER NAME: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RESEARCH INSTITUTE Owner name: CHINA COAL TECHNOLOGY + ENGINEERING GROUP XI'AN RE Free format text: FORMER NAME: SIAN BRANCH OF CHINA COAL RESEARCH INSTITUTE |
|
CP01 | Change in the name or title of a patent holder |
Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: CCTEG Xi'an Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Research Institute Of China Coal Research Institute Address after: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee after: Xi'an Research Institute Of China Coal Research Institute Address before: 710054 No. 52, Yanta Road, Xi'an, Shaanxi Patentee before: Xi'an Branch of China Coal Research Institute |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20100505 |