CN202937185U - 射流式液动冲击器 - Google Patents
射流式液动冲击器 Download PDFInfo
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- CN202937185U CN202937185U CN 201220693324 CN201220693324U CN202937185U CN 202937185 U CN202937185 U CN 202937185U CN 201220693324 CN201220693324 CN 201220693324 CN 201220693324 U CN201220693324 U CN 201220693324U CN 202937185 U CN202937185 U CN 202937185U
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CN 201220693324 CN202937185U (zh) | 2012-12-14 | 2012-12-14 | 射流式液动冲击器 |
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CN 201220693324 CN202937185U (zh) | 2012-12-14 | 2012-12-14 | 射流式液动冲击器 |
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CN202937185U true CN202937185U (zh) | 2013-05-15 |
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CN 201220693324 Expired - Fee Related CN202937185U (zh) | 2012-12-14 | 2012-12-14 | 射流式液动冲击器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103696686A (zh) * | 2013-12-09 | 2014-04-02 | 吉林大学 | 射流式激增压力脉冲减阻钻具 |
CN103967408A (zh) * | 2014-05-06 | 2014-08-06 | 北京信息科技大学 | 液动冲击钻井工具 |
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2012
- 2012-12-14 CN CN 201220693324 patent/CN202937185U/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103696686A (zh) * | 2013-12-09 | 2014-04-02 | 吉林大学 | 射流式激增压力脉冲减阻钻具 |
CN103967408A (zh) * | 2014-05-06 | 2014-08-06 | 北京信息科技大学 | 液动冲击钻井工具 |
CN103967408B (zh) * | 2014-05-06 | 2016-01-13 | 北京信息科技大学 | 液动冲击钻井工具 |
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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: 20201215 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: 20130515 Termination date: 20211214 |