CN202926269U - 一种加压、上拔双岩心爪组合取心工具 - Google Patents
一种加压、上拔双岩心爪组合取心工具 Download PDFInfo
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CN 201220533664 CN202926269U (zh) | 2012-10-18 | 2012-10-18 | 一种加压、上拔双岩心爪组合取心工具 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105525885A (zh) * | 2014-09-28 | 2016-04-27 | 中国石油化工集团公司 | 一种极疏松地层旋转插入式取心工具 |
CN109184607A (zh) * | 2018-09-01 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | 取芯扩孔器 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105525885A (zh) * | 2014-09-28 | 2016-04-27 | 中国石油化工集团公司 | 一种极疏松地层旋转插入式取心工具 |
CN105525885B (zh) * | 2014-09-28 | 2017-11-07 | 中国石油化工集团公司 | 一种极疏松地层旋转插入式取心工具 |
CN109184607A (zh) * | 2018-09-01 | 2019-01-11 | 邹城兖矿泰德工贸有限公司 | 取芯扩孔器 |
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Effective date of registration: 20151103 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20201018 |
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CF01 | Termination of patent right due to non-payment of annual fee |