CN206917615U - 一种多通道快换钻杆 - Google Patents
一种多通道快换钻杆 Download PDFInfo
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- CN206917615U CN206917615U CN201720415855.XU CN201720415855U CN206917615U CN 206917615 U CN206917615 U CN 206917615U CN 201720415855 U CN201720415855 U CN 201720415855U CN 206917615 U CN206917615 U CN 206917615U
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- drilling rod
- quick change
- female joint
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CN201720415855.XU CN206917615U (zh) | 2017-04-20 | 2017-04-20 | 一种多通道快换钻杆 |
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CN201720415855.XU CN206917615U (zh) | 2017-04-20 | 2017-04-20 | 一种多通道快换钻杆 |
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CN206917615U true CN206917615U (zh) | 2018-01-23 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111594066A (zh) * | 2020-06-23 | 2020-08-28 | 西南石油大学 | 一种三通道钻杆 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111594066A (zh) * | 2020-06-23 | 2020-08-28 | 西南石油大学 | 一种三通道钻杆 |
CN111594066B (zh) * | 2020-06-23 | 2021-08-24 | 西南石油大学 | 一种三通道钻杆 |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A multi channel quick change drill pipe Effective date of registration: 20210302 Granted publication date: 20180123 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY Co.,Ltd. Registration number: Y2021420000008 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220120 Granted publication date: 20180123 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: WUHAN QIANCHENG PILE WORK TECHNOLOGY CO.,LTD. Registration number: Y2021420000008 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |