CN201110139Y - Combined centralizer - Google Patents
Combined centralizer Download PDFInfo
- Publication number
- CN201110139Y CN201110139Y CNU2007201819326U CN200720181932U CN201110139Y CN 201110139 Y CN201110139 Y CN 201110139Y CN U2007201819326 U CNU2007201819326 U CN U2007201819326U CN 200720181932 U CN200720181932 U CN 200720181932U CN 201110139 Y CN201110139 Y CN 201110139Y
- Authority
- CN
- China
- Prior art keywords
- support sleeve
- support cover
- lower support
- upper support
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Earth Drilling (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007201819326U CN201110139Y (en) | 2007-11-16 | 2007-11-16 | Combined centralizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007201819326U CN201110139Y (en) | 2007-11-16 | 2007-11-16 | Combined centralizer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201110139Y true CN201110139Y (en) | 2008-09-03 |
Family
ID=39894669
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007201819326U Expired - Fee Related CN201110139Y (en) | 2007-11-16 | 2007-11-16 | Combined centralizer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201110139Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106513208A (en) * | 2015-09-15 | 2017-03-22 | 江苏图博可特曙光涂层有限公司 | Automatic centering device |
CN107299833A (en) * | 2017-07-06 | 2017-10-27 | 中国石油大学(北京) | A kind of Casing Detection leak source apparatus and method |
CN107965273A (en) * | 2017-11-30 | 2018-04-27 | 王红军 | A kind of stability height and the strong petroleum casing pipe of anti-pressure ability |
-
2007
- 2007-11-16 CN CNU2007201819326U patent/CN201110139Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106513208A (en) * | 2015-09-15 | 2017-03-22 | 江苏图博可特曙光涂层有限公司 | Automatic centering device |
CN107299833A (en) * | 2017-07-06 | 2017-10-27 | 中国石油大学(北京) | A kind of Casing Detection leak source apparatus and method |
CN107965273A (en) * | 2017-11-30 | 2018-04-27 | 王红军 | A kind of stability height and the strong petroleum casing pipe of anti-pressure ability |
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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: 20090109 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 |
|
CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Western Drilling Kelamayi Drilling Technology Institute False: Western drilling Kelamayi Drilling Technology Research Institute Number: 5 Page: 812 Volume: 25 |
|
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: 20090109 |
|
ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: WEST KELAMAYI DRILLING CRAFT RESEARCH INSTITUTE TO: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INSTITUTE |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080903 Termination date: 20161116 |
|
CF01 | Termination of patent right due to non-payment of annual fee |