CN203961791U - 带有切削齿的三级扩眼器 - Google Patents
带有切削齿的三级扩眼器 Download PDFInfo
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- CN203961791U CN203961791U CN201420349105.3U CN201420349105U CN203961791U CN 203961791 U CN203961791 U CN 203961791U CN 201420349105 U CN201420349105 U CN 201420349105U CN 203961791 U CN203961791 U CN 203961791U
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- cutting teeth
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Application Number | Priority Date | Filing Date | Title |
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CN201420349105.3U CN203961791U (zh) | 2014-06-27 | 2014-06-27 | 带有切削齿的三级扩眼器 |
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CN201420349105.3U CN203961791U (zh) | 2014-06-27 | 2014-06-27 | 带有切削齿的三级扩眼器 |
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CN203961791U true CN203961791U (zh) | 2014-11-26 |
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CN201420349105.3U Expired - Fee Related CN203961791U (zh) | 2014-06-27 | 2014-06-27 | 带有切削齿的三级扩眼器 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104763343A (zh) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | 一种嵌固仿生喷嘴的多级扩孔钻具及其扩孔方法 |
CN105735897A (zh) * | 2014-12-12 | 2016-07-06 | 中国石油大学(华东) | 一种水力动力三级展开式煤层气造洞穴工具 |
CN108979542A (zh) * | 2018-06-27 | 2018-12-11 | 中国海洋石油集团有限公司 | 一种多级固定翼扩眼器及其使用方法 |
CN113513263A (zh) * | 2021-09-01 | 2021-10-19 | 中石化石油工程技术服务有限公司 | 扩眼钻具及定向钻井方法 |
-
2014
- 2014-06-27 CN CN201420349105.3U patent/CN203961791U/zh not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105735897A (zh) * | 2014-12-12 | 2016-07-06 | 中国石油大学(华东) | 一种水力动力三级展开式煤层气造洞穴工具 |
CN104763343A (zh) * | 2015-03-05 | 2015-07-08 | 成都理工大学 | 一种嵌固仿生喷嘴的多级扩孔钻具及其扩孔方法 |
CN108979542A (zh) * | 2018-06-27 | 2018-12-11 | 中国海洋石油集团有限公司 | 一种多级固定翼扩眼器及其使用方法 |
CN113513263A (zh) * | 2021-09-01 | 2021-10-19 | 中石化石油工程技术服务有限公司 | 扩眼钻具及定向钻井方法 |
CN113513263B (zh) * | 2021-09-01 | 2024-09-03 | 中石化石油工程技术服务有限公司 | 扩眼钻具及定向钻井方法 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: CNOOC (China) Limited Zhanjiang Branch Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 China oil tower, 25 Chaoyangmen North Street, Dongcheng District, Beijing Co-patentee before: CNOOC (China) Limited Zhanjiang Branch Patentee before: CHINA NATIONAL OFFSHORE OIL 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: 20141126 Termination date: 20210627 |