CN202914026U - 固井水泥头 - Google Patents
固井水泥头 Download PDFInfo
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- CN202914026U CN202914026U CN 201220623261 CN201220623261U CN202914026U CN 202914026 U CN202914026 U CN 202914026U CN 201220623261 CN201220623261 CN 201220623261 CN 201220623261 U CN201220623261 U CN 201220623261U CN 202914026 U CN202914026 U CN 202914026U
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CN 201220623261 CN202914026U (zh) | 2012-11-22 | 2012-11-22 | 固井水泥头 |
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CN 201220623261 CN202914026U (zh) | 2012-11-22 | 2012-11-22 | 固井水泥头 |
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CN202914026U true CN202914026U (zh) | 2013-05-01 |
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CN 201220623261 Expired - Lifetime CN202914026U (zh) | 2012-11-22 | 2012-11-22 | 固井水泥头 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105317395A (zh) * | 2014-07-07 | 2016-02-10 | 中国石油化工股份有限公司 | 一种旋转水泥头 |
CN106522875A (zh) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | 固井接头 |
CN107503710A (zh) * | 2017-10-11 | 2017-12-22 | 中国海洋石油总公司 | 一种固井水泥头立柱组装方法 |
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2012
- 2012-11-22 CN CN 201220623261 patent/CN202914026U/zh not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105317395A (zh) * | 2014-07-07 | 2016-02-10 | 中国石油化工股份有限公司 | 一种旋转水泥头 |
CN105317395B (zh) * | 2014-07-07 | 2019-01-01 | 中国石油化工股份有限公司 | 一种旋转水泥头 |
CN106522875A (zh) * | 2016-12-07 | 2017-03-22 | 中国石油集团西部钻探工程有限公司 | 固井接头 |
CN107503710A (zh) * | 2017-10-11 | 2017-12-22 | 中国海洋石油总公司 | 一种固井水泥头立柱组装方法 |
CN107503710B (zh) * | 2017-10-11 | 2020-05-19 | 中国海洋石油集团有限公司 | 一种固井水泥头立柱组装方法 |
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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: 20201210 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. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130501 |