CN202914024U - 浮箍 - Google Patents
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- CN202914024U CN202914024U CN 201220596580 CN201220596580U CN202914024U CN 202914024 U CN202914024 U CN 202914024U CN 201220596580 CN201220596580 CN 201220596580 CN 201220596580 U CN201220596580 U CN 201220596580U CN 202914024 U CN202914024 U CN 202914024U
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Application Number | Priority Date | Filing Date | Title |
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CN 201220596580 CN202914024U (zh) | 2012-11-12 | 2012-11-12 | 浮箍 |
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CN 201220596580 CN202914024U (zh) | 2012-11-12 | 2012-11-12 | 浮箍 |
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CN202914024U true CN202914024U (zh) | 2013-05-01 |
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CN 201220596580 Expired - Fee Related CN202914024U (zh) | 2012-11-12 | 2012-11-12 | 浮箍 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104179473A (zh) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | 防落物浮箍 |
CN104533342A (zh) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | 水平井球座工具 |
CN107740682A (zh) * | 2017-11-28 | 2018-02-27 | 长江大学 | 一种自动调节式堵漏工具 |
CN110878680A (zh) * | 2019-10-28 | 2020-03-13 | 大庆石油管理局有限公司 | 一种下套管憋压单向阀 |
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2012
- 2012-11-12 CN CN 201220596580 patent/CN202914024U/zh not_active Expired - Fee Related
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104179473A (zh) * | 2013-05-28 | 2014-12-03 | 中国石油化工股份有限公司 | 防落物浮箍 |
CN104179473B (zh) * | 2013-05-28 | 2016-09-21 | 中国石油化工股份有限公司 | 防落物浮箍 |
CN104533342A (zh) * | 2015-01-20 | 2015-04-22 | 中国石油化工股份有限公司 | 水平井球座工具 |
CN107740682A (zh) * | 2017-11-28 | 2018-02-27 | 长江大学 | 一种自动调节式堵漏工具 |
CN107740682B (zh) * | 2017-11-28 | 2024-03-22 | 长江大学 | 一种自动调节式堵漏工具 |
CN110878680A (zh) * | 2019-10-28 | 2020-03-13 | 大庆石油管理局有限公司 | 一种下套管憋压单向阀 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: TIANJIN DAGANG INSTITUTE OF PETROLEUM ENGINEERING Free format text: FORMER NAME: TIANJIN DAGANG OIL FIELD DRILLING TECHNOLOGY DEVELOPMENT COMPANY |
|
CP01 | Change in the name or title of a patent holder |
Address after: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee after: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING Patentee after: Dagang Oil Field Group Co., Ltd. Address before: Three Dagang oil field, Tianjin, Grand Port, No. 300280 Patentee before: Tianjin Dagang Oilfield Drilling Technology Development Co., Ltd. Patentee before: Dagang Oil Field Group Co., Ltd. |
|
CP03 | Change of name, title or address |
Address after: 300270 Tianjin Binhai New Area Dagang No.3 Hospital Co-patentee after: Dagang Oil Field Group Co., Ltd. Patentee after: Tianjin Dagang Oil Field Petroleum Engineering Research Institute Drilling Technology Development Co Ltd Address before: No.3 Dagang Oilfield Hospital, Dagang District, Tianjin Co-patentee before: Dagang Oil Field Group Co., Ltd. Patentee before: DRILLING TECHNOLOGY DEVELOPMENT COMPANY, TIANJIN DAGANG OILFIELD RESEARCH INSTITUTE OF PETROLEUM ENGINEERING |
|
CP03 | Change of name, title or address | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20201112 |
|
CF01 | Termination of patent right due to non-payment of annual fee |