CN204984347U - 无接箍井眼与套管环空水泥回填注浆管柱 - Google Patents
无接箍井眼与套管环空水泥回填注浆管柱 Download PDFInfo
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- CN204984347U CN204984347U CN201520603432.1U CN201520603432U CN204984347U CN 204984347 U CN204984347 U CN 204984347U CN 201520603432 U CN201520603432 U CN 201520603432U CN 204984347 U CN204984347 U CN 204984347U
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108086325A (zh) * | 2018-01-26 | 2018-05-29 | 中国建筑第八工程局有限公司 | 桩基施工中的注浆管及其施工方法 |
CN112647894A (zh) * | 2020-12-25 | 2021-04-13 | 中石化石油工程技术服务有限公司 | 一种提高水平井固井顶替效率的设计方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108086325A (zh) * | 2018-01-26 | 2018-05-29 | 中国建筑第八工程局有限公司 | 桩基施工中的注浆管及其施工方法 |
CN112647894A (zh) * | 2020-12-25 | 2021-04-13 | 中石化石油工程技术服务有限公司 | 一种提高水平井固井顶替效率的设计方法 |
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Legal Events
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
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TR01 | Transfer of patent right |
Effective date of registration: 20210719 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. |
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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: 20160120 |