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Environment-friendly slickwater resistance reducing agent for cracking of shale gas and preparation method of environment-friendly slickwater resistance reducing agent
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Year of Publication 19.12.2017
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Information query method and device
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Year of Publication 14.11.2017
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Year of Publication 14.11.2017
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Throw formula of dragging for shaft bottom sampling tool
ZHANG WU, WANG LIN, XIE TONGCHUAN, ZHANG SHILIN, LI NAN, XU QINGXIANG, LYU XUANPENG, HUANG QI, LI XUDONG, MA TIANLI
Year of Publication 10.05.2017
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Year of Publication 10.05.2017
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Dropping-fishing type shaft bottom sampling tool
ZHANG WU, WANG LIN, XIE TONGCHUAN, ZHANG SHILIN, LI NAN, XU QINGXIANG, LYU XUANPENG, HUANG QI, LI XUDONG, MA TIANLI
Year of Publication 04.01.2017
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Year of Publication 04.01.2017
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