CN208502682U - 一种轴承式减摩降阻接头 - Google Patents
一种轴承式减摩降阻接头 Download PDFInfo
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CN201820958411.5U CN208502682U (zh) | 2018-06-21 | 2018-06-21 | 一种轴承式减摩降阻接头 |
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Cited By (1)
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CN112761546A (zh) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | 减阻防磨钻柱保护器 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112761546A (zh) * | 2021-02-04 | 2021-05-07 | 西南石油大学 | 减阻防磨钻柱保护器 |
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Effective date of registration: 20220214 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli directional well company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |