CN207161005U - 一种柔性钻杆 - Google Patents
一种柔性钻杆 Download PDFInfo
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- CN207161005U CN207161005U CN201720866807.2U CN201720866807U CN207161005U CN 207161005 U CN207161005 U CN 207161005U CN 201720866807 U CN201720866807 U CN 201720866807U CN 207161005 U CN207161005 U CN 207161005U
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CN201720866807.2U CN207161005U (zh) | 2017-07-17 | 2017-07-17 | 一种柔性钻杆 |
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CN201720866807.2U CN207161005U (zh) | 2017-07-17 | 2017-07-17 | 一种柔性钻杆 |
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CN207161005U true CN207161005U (zh) | 2018-03-30 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113216868A (zh) * | 2021-05-11 | 2021-08-06 | 中煤科工集团西安研究院有限公司 | 一种单向弯曲钻具及冲孔造穴掏煤方法 |
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- 2017-07-17 CN CN201720866807.2U patent/CN207161005U/zh active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113216868A (zh) * | 2021-05-11 | 2021-08-06 | 中煤科工集团西安研究院有限公司 | 一种单向弯曲钻具及冲孔造穴掏煤方法 |
CN113216868B (zh) * | 2021-05-11 | 2022-06-24 | 中煤科工集团西安研究院有限公司 | 一种单向弯曲钻具及冲孔造穴掏煤方法 |
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Effective date of registration: 20180323 Address after: 050000 Hong Wah street, No. 47, No. 47, worker, agriculture road, Tokyo North Industrial District, Yuhua District, Hebei Province, 1 Co-patentee after: North China Engineering Investigation Institute Co., Ltd. Patentee after: HEBEI ZHONGRONG PETROLEUM MACHINERY CO., LTD. Address before: 050000 Hong Wah street, No. 47, No. 47, worker, agriculture road, Tokyo North Industrial District, Yuhua District, Hebei Province, 1 Patentee before: HEBEI ZHONGRONG PETROLEUM MACHINERY CO., LTD. |