CN205778681U - 一种液压式井口光杆盘根盒自紧装置 - Google Patents
一种液压式井口光杆盘根盒自紧装置 Download PDFInfo
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105952409A (zh) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | 一种液压式井口光杆盘根盒自紧装置 |
CN111305786A (zh) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | 一种自动紧盘根光杆密封器 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105952409A (zh) * | 2016-07-11 | 2016-09-21 | 中国石油化工股份有限公司华东油气分公司泰州采油厂 | 一种液压式井口光杆盘根盒自紧装置 |
CN111305786A (zh) * | 2020-04-17 | 2020-06-19 | 濮阳市大通机泵有限公司 | 一种自动紧盘根光杆密封器 |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20181130 Address after: 225300 Wuliqiao Trial Production Brigade Complex Building, Taizhou Development Zone, Jiangsu Province Patentee after: Taizhou Youheng Oil and Gas Engineering Service Co., Ltd. Address before: 225300 South Passage 99, Hailing District, Taizhou City, Jiangsu Province Patentee before: China Petroleum Chemical Co Huadong oil and gas branch Taizhou oil production plant |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210907 Address after: 225300 South Passage 99, Hailing District, Taizhou City, Jiangsu Province Patentee after: TAIZHOU OIL PRODUCTION PLANT, CHINA PETROLEUM & CHEMICAL CORPORATION EAST CHINA OIL & GAS Co. Address before: 225300 Wuliqiao Trial Production Brigade Complex Building, Taizhou Development Zone, Jiangsu Province Patentee before: Taizhou Youheng Oil and Gas Engineering Service Co.,Ltd. |
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TR01 | Transfer of patent right |