Noise reduction device for top driving device of petroleum drilling machine
HUANG JIE, WU KE, NIU YUEJIN, LI MINGYU, YANG BIN, QIU CHUANJUN, LIANG HUIGAO
Year of Publication 09.09.2022
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Year of Publication 09.09.2022
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Detachable soft mute curtain for top drive of petroleum drilling machine
GONG WEIMIN, NIU YUEJIN, ZHANG JIANXUN, HE HONGYE, ZHENG ZHIYONG, QIU CHUANJUN, HE LIHUA, ZHAO SHEQIANG
Year of Publication 26.08.2022
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Year of Publication 26.08.2022
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Detachable large-ventilation-quantity mute system for generator set of petroleum drilling machine
GONG WEIMIN, NIU YUEJIN, ZHANG JIANXUN, HE HONGYE, QIU CHUANJUN, HE LIHUA, ZHAO SHEQIANG, LI JIANFEN
Year of Publication 29.07.2022
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Year of Publication 29.07.2022
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Cement retainer fisher
ZHANG JIAGEN, CHEN QIANG, LIU XINDANG, LIN YONG, QIU CHUANJUN, ZHOU CHANGJUN
Year of Publication 06.05.2015
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Year of Publication 06.05.2015
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Removal tool for valve core of drilling tool float valve
HUANG WENMING, WANG JINGBO, CHEN QI, CHENG XIANBIN, QIU CHUANJUN, LIU CHUNLIN, NIU ZAIJU
Year of Publication 08.04.2015
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Year of Publication 08.04.2015
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Drill rod dragging system for power catwalk
ZOU SHIBIN, WEN JINMING, ZENG XIANCHENG, QIU CHUANJUN, GUO XIAN, JIAO WENQIANG
Year of Publication 18.06.2014
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Year of Publication 18.06.2014
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Closed gas-lift liquid discharge combined tubing string for low-pressure oil and gas well
WANG XUANKUI, ZHAO BIN, ZHAO YUXIN, QIU CHUANJUN, YUAN XIAOXIAN, WEI RUILING
Year of Publication 23.04.2014
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Year of Publication 23.04.2014
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Recovery device of refractory coal slime with high ash content
LIU PEIKUN, WANG QUNCANG, LU SHUAI, ZENG XIANCHENG, TIAN WENWEI, QIU CHUANJUN, FENG QUNDI
Year of Publication 16.04.2014
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Year of Publication 16.04.2014
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Novel drilling liquid double-layer vibrating screen
LIU YIYUAN, YANG CHANGYOU, ZENG XIANCHENG, LI HAIYING, TIAN CUIPING, FENG QUNDI, QIU CHUANJUN
Year of Publication 19.06.2013
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Year of Publication 19.06.2013
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Direct push catwalk machine for low drill stand
ZOU SHIBIN, SHI QINGLIN, ZENG XIANCHENG, TIAN CUIPING, GUO XIAN, QIU CHUANJUN, XU MAOLIN
Year of Publication 12.06.2013
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Year of Publication 12.06.2013
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Novel lamination high-frequency vibrating screen
YANG FANGYOU, ZHANG LUYANG, ZHENG JINSHAN, FENG QUNDI, QIU CHUANJUN, MA XIUYU, CHEN PEICHAO, AN WEI
Year of Publication 16.04.2014
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Year of Publication 16.04.2014
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Automatic placing device for drill pipes
ZOU SHIBIN, SHI QINGLIN, QIU CHUANJUN, CHENG YOUJIANG, LIU YONG, LIU HONGWEI
Year of Publication 24.10.2012
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Year of Publication 24.10.2012
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Casing stabbing board
YANG LIFANG, WANG JIANHONG, GUO XIAN, QIU CHUANJUN, MA JUNJIANG, CHEN PEICHAO
Year of Publication 03.10.2012
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Year of Publication 03.10.2012
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Slip frame
LIU QIANGHAI, ZHANG JINGUO, FENG QUNDI, QIU CHUANJUN, CHEN ZUOLONG, XU MAOLIN
Year of Publication 03.10.2012
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Year of Publication 03.10.2012
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