CN201756942U - 膨胀式油管堵塞器 - Google Patents
膨胀式油管堵塞器 Download PDFInfo
- Publication number
- CN201756942U CN201756942U CN2010202914207U CN201020291420U CN201756942U CN 201756942 U CN201756942 U CN 201756942U CN 2010202914207 U CN2010202914207 U CN 2010202914207U CN 201020291420 U CN201020291420 U CN 201020291420U CN 201756942 U CN201756942 U CN 201756942U
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- body portion
- outer tube
- tubing plug
- tube body
- tubing
- 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 - Lifetime
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Abstract
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Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202914207U CN201756942U (zh) | 2010-08-13 | 2010-08-13 | 膨胀式油管堵塞器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010202914207U CN201756942U (zh) | 2010-08-13 | 2010-08-13 | 膨胀式油管堵塞器 |
Publications (1)
Publication Number | Publication Date |
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CN201756942U true CN201756942U (zh) | 2011-03-09 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010202914207U Expired - Lifetime CN201756942U (zh) | 2010-08-13 | 2010-08-13 | 膨胀式油管堵塞器 |
Country Status (1)
Country | Link |
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CN (1) | CN201756942U (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103967443A (zh) * | 2014-05-12 | 2014-08-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | 一种上提式油管封堵装置 |
CN108518196A (zh) * | 2018-04-08 | 2018-09-11 | 徐州大屯工程咨询有限公司 | 一种钻孔止水装置 |
-
2010
- 2010-08-13 CN CN2010202914207U patent/CN201756942U/zh not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103967443A (zh) * | 2014-05-12 | 2014-08-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | 一种上提式油管封堵装置 |
CN108518196A (zh) * | 2018-04-08 | 2018-09-11 | 徐州大屯工程咨询有限公司 | 一种钻孔止水装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: TOP-WELL PETROLEUM TECHNOLOGIES COMPANY LTD. Free format text: FORMER OWNER: BEIJING TOP-WELL PETROLEUM TECHNOLOGIES SERVICE COMPANY LTD. Effective date: 20121123 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20121123 Address after: 100012, room 32, security building, 2101 Beiyuan Road, Beijing, Chaoyang District Patentee after: Top-Well Petroleum Technologies Company Ltd. Address before: 100012, room 32, security building, 2101 Beiyuan Road, Beijing, Chaoyang District Patentee before: Top Well Services Inc. |
|
CX01 | Expiry of patent term |
Granted publication date: 20110309 |
|
CX01 | Expiry of patent term |