CN201148859Y - 一种不关孔压差式分级注水泥器 - Google Patents
一种不关孔压差式分级注水泥器 Download PDFInfo
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- CN201148859Y CN201148859Y CNU2008200029762U CN200820002976U CN201148859Y CN 201148859 Y CN201148859 Y CN 201148859Y CN U2008200029762 U CNU2008200029762 U CN U2008200029762U CN 200820002976 U CN200820002976 U CN 200820002976U CN 201148859 Y CN201148859 Y CN 201148859Y
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Application Number | Priority Date | Filing Date | Title |
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CNU2008200029762U CN201148859Y (zh) | 2008-01-29 | 2008-01-29 | 一种不关孔压差式分级注水泥器 |
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CNU2008200029762U CN201148859Y (zh) | 2008-01-29 | 2008-01-29 | 一种不关孔压差式分级注水泥器 |
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CN201148859Y true CN201148859Y (zh) | 2008-11-12 |
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CNU2008200029762U Expired - Fee Related CN201148859Y (zh) | 2008-01-29 | 2008-01-29 | 一种不关孔压差式分级注水泥器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103510911A (zh) * | 2012-06-28 | 2014-01-15 | 北京格瑞迪斯石油技术有限公司 | 井底防漏封堵***及使用该***固井的方法 |
CN103510904A (zh) * | 2012-06-28 | 2014-01-15 | 北京格瑞迪斯石油技术有限公司 | 固井用井底防漏封堵装置 |
-
2008
- 2008-01-29 CN CNU2008200029762U patent/CN201148859Y/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103510911A (zh) * | 2012-06-28 | 2014-01-15 | 北京格瑞迪斯石油技术有限公司 | 井底防漏封堵***及使用该***固井的方法 |
CN103510904A (zh) * | 2012-06-28 | 2014-01-15 | 北京格瑞迪斯石油技术有限公司 | 固井用井底防漏封堵装置 |
CN103510911B (zh) * | 2012-06-28 | 2015-08-19 | 北京格瑞迪斯石油技术有限公司 | 井底防漏封堵***及使用该***固井的方法 |
CN103510904B (zh) * | 2012-06-28 | 2016-01-20 | 北京格瑞迪斯石油技术有限公司 | 固井用井底防漏封堵装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20160129 |
|
EXPY | Termination of patent right or utility model |