CN207944913U - 免钻式盲板 - Google Patents
免钻式盲板 Download PDFInfo
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- CN207944913U CN207944913U CN201721895856.5U CN201721895856U CN207944913U CN 207944913 U CN207944913 U CN 207944913U CN 201721895856 U CN201721895856 U CN 201721895856U CN 207944913 U CN207944913 U CN 207944913U
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CN201721895856.5U CN207944913U (zh) | 2017-12-29 | 2017-12-29 | 免钻式盲板 |
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Cited By (1)
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CN109989725A (zh) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | 免钻式盲板及免钻塞固井工艺 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109989725A (zh) * | 2017-12-29 | 2019-07-09 | 中石化石油工程技术服务有限公司 | 免钻式盲板及免钻塞固井工艺 |
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Effective date of registration: 20250521 Address after: Room 1202, No. 22 Chaoyangmen North Street, Chaoyang District, Beijing, 100728 Patentee after: Sinopec Petroleum Engineering Technology Service Co.,Ltd. Country or region after: China Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 100101 Beijing, Beichen West Road, No. 8 Beichen world center, block A, No. 703, No. Patentee before: SINOPEC OILFIELD SERVICE Corp. Country or region before: China Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |