CN202628023U - 固井用井底防漏封堵装置 - Google Patents
固井用井底防漏封堵装置 Download PDFInfo
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- CN202628023U CN202628023U CN 201220307123 CN201220307123U CN202628023U CN 202628023 U CN202628023 U CN 202628023U CN 201220307123 CN201220307123 CN 201220307123 CN 201220307123 U CN201220307123 U CN 201220307123U CN 202628023 U CN202628023 U CN 202628023U
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- hole
- valve seat
- cylindrical hole
- plugging device
- shaft bottom
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CN 201220307123 CN202628023U (zh) | 2012-06-28 | 2012-06-28 | 固井用井底防漏封堵装置 |
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CN 201220307123 CN202628023U (zh) | 2012-06-28 | 2012-06-28 | 固井用井底防漏封堵装置 |
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CN202628023U true CN202628023U (zh) | 2012-12-26 |
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CN 201220307123 Expired - Lifetime CN202628023U (zh) | 2012-06-28 | 2012-06-28 | 固井用井底防漏封堵装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN104929561A (zh) * | 2014-03-18 | 2015-09-23 | 中国石油化工股份有限公司 | 封隔器 |
-
2012
- 2012-06-28 CN CN 201220307123 patent/CN202628023U/zh not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
CN104929561A (zh) * | 2014-03-18 | 2015-09-23 | 中国石油化工股份有限公司 | 封隔器 |
CN104929561B (zh) * | 2014-03-18 | 2017-07-07 | 中国石油化工股份有限公司 | 封隔器 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: He Zhigang Inventor after: Xu Zhixiong Inventor after: Jia Yinglin Inventor after: Li Xiaochun Inventor after: Zhao Guoquan Inventor before: He Zhigang Inventor before: Xu Zhixiong Inventor before: Jia Yinglin Inventor before: Li Xiaochun Inventor before: Lao Chunyu |
|
COR | Change of bibliographic data | ||
DD01 | Delivery of document by public notice |
Addressee: Beijing Grand Oil Tech Co.,Ltd. Document name: Notification of Passing Examination on Formalities |
|
TR01 | Transfer of patent right |
Effective date of registration: 20180612 Address after: 841000 the Xinjiang Uygur Autonomous Region Bayinguoleng Mongolia Autonomous Prefecture Korla economic and Technological Development Zone Development Avenue building A block 1609 Patentee after: XINJIANG GRAND OILFIELD TECHNOLOGY Co.,Ltd. Address before: 100102 2608, 22 floor, building 601, Wangjing garden, Chaoyang District, Beijing. Patentee before: Beijing Grand Oil Tech Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
CX01 | Expiry of patent term |