CN205778731U - 一种滑套开关桥塞 - Google Patents
一种滑套开关桥塞 Download PDFInfo
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106609796A (zh) * | 2017-03-01 | 2017-05-03 | 西华大学 | 变径支撑环及轴孔配合结构 |
CN109356548A (zh) * | 2018-11-05 | 2019-02-19 | 中国石油化工股份有限公司 | 一种适用于不压井作业的井下装置及投产方法 |
CN109707344A (zh) * | 2019-03-15 | 2019-05-03 | 东北石油大学 | 一种多功能油气井套管井下开关 |
CN111749643A (zh) * | 2020-07-02 | 2020-10-09 | 大庆益科石油科技开发有限公司 | 一体式可钻挤注桥塞 |
CN113250656A (zh) * | 2021-06-07 | 2021-08-13 | 中国石油化工股份有限公司 | 一种co2驱油井不压井采油管柱 |
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2016
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106609796A (zh) * | 2017-03-01 | 2017-05-03 | 西华大学 | 变径支撑环及轴孔配合结构 |
CN106609796B (zh) * | 2017-03-01 | 2018-10-19 | 西华大学 | 变径支撑环及轴孔配合结构 |
CN109356548A (zh) * | 2018-11-05 | 2019-02-19 | 中国石油化工股份有限公司 | 一种适用于不压井作业的井下装置及投产方法 |
CN109707344A (zh) * | 2019-03-15 | 2019-05-03 | 东北石油大学 | 一种多功能油气井套管井下开关 |
CN111749643A (zh) * | 2020-07-02 | 2020-10-09 | 大庆益科石油科技开发有限公司 | 一体式可钻挤注桥塞 |
CN113250656A (zh) * | 2021-06-07 | 2021-08-13 | 中国石油化工股份有限公司 | 一种co2驱油井不压井采油管柱 |
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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: 20181128 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: 20210908 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 |