Prevent stifled water injection well choke
LI JIANQIANG, ZHANG JINPING, CHU YUEQIN, ZHOU XIAODONG, ZHOU KAI, SHANG YAN'AN, LIU SAI
Year of Publication 10.02.2016
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Year of Publication 10.02.2016
Patent
Prevent grinding partially preventing spouting box
ZHAO HONGXIA, ZHENG YAN, CHU YUEQIN, DOU GUANGHUA, ZHOU XIAODONG, LIU CHEN, ZHOU KAI
Year of Publication 09.12.2015
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Year of Publication 09.12.2015
Patent
Cutting device for O-shaped packing of polish rod of pumping well
KONG HONGFANG, LI GUIRONG, WEI YANQUAN, CHU YUEQIN, ZHOU XIAODONG, WEI YANHUI, ZHOU SHUXIAN
Year of Publication 25.11.2015
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Year of Publication 25.11.2015
Patent
Pumpingh well polished rod O type packing cutting device
KONG HONGFANG, LI GUIRONG, WEI YANQUAN, CHU YUEQIN, ZHOU XIAODONG, WEI YANHUI, ZHOU SHUXIAN
Year of Publication 25.11.2015
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Year of Publication 25.11.2015
Patent
Disassembling and assembling device
WEI YANQUAN, CHU YUEQIN, SONG SONGGANG, WEI YANHUI, DONG YANJUN, LI GANG
Year of Publication 22.04.2015
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Year of Publication 22.04.2015
Patent
Double-track adjusting device
KONG HONGFANG, ZHANG RUILIN, CHU YUEQIN, JIANG YUANGUO, ZHOU XIAODONG, ZHOU KAI, SHA YING, FANG BAOCAI, QIAO ZHONGCHENG
Year of Publication 10.06.2015
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Year of Publication 10.06.2015
Patent
Rigid centralizer
ZHAO YONGQIANG, MA YANHUA, ZHAO HONGXIA, YU JINPING, FAN JIANGPING, CHU YUEQIN, ZHANG JIAN, LIU SHIQIANG, HAN HUA, WANG QIANG
Year of Publication 20.01.2016
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Year of Publication 20.01.2016
Patent
Pressure gauge joint
KONG HONGFANG, DENG YAN, CHU YUEQIN, LIU HONGYAN, SHA NAILIANG, XIA MINGHAI
Year of Publication 04.01.2019
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Year of Publication 04.01.2019
Patent
Oil pump anti-fracture cover plunger
WANG WANQING, CHU YUEQIN, FAN JIANGPING, TU YONG, XU ZHENGBIN, ZHOU XIAODONG, GAI GUOSHENG, WANG QIANG, FANG BAOCAI, LI GANG
Year of Publication 08.07.2015
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Year of Publication 08.07.2015
Patent
Energy saving method for beam-pumping unit
CHU YUEQIN, FAN JIANGPING, ZHAO GUANGQI, HOU LIJUN, ZHANG JIANLI, XU ZHENGBIN, ZHOU XIAODONG, WANG QIANG, FANG BAOCAI, LI GANG, QIAO ZHONGCHENG
Year of Publication 22.04.2015
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Year of Publication 22.04.2015
Patent
A well -flushing pressure relief device for split injection well
PAN MIN, CHU YUEQIN, CHEN JINSUO, LIU SHIQIANG, HAN HUA, CUI CHENBIN, LYU ZHIXIN, ZHANG FAN
Year of Publication 13.10.2017
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Year of Publication 13.10.2017
Patent
Pump colliding device and method
KONG HONGFANG, CHU YUEQIN, LIU HONGYAN, PAN XIAODONG, WANG LIXIN, LI YONGMEI, ZHOU XIAODONG, ZHOU KAI, QIAO ZHONGCHENG
Year of Publication 05.06.2018
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Year of Publication 05.06.2018
Patent
Pumping unit balancing device
KONG HONGFANG, LI GUIRONG, ZHAO HONGXIA, ZHENG YAN, CHU YUEQIN, ZHOU XIAODONG, ZHOU KAI, SHANG YAN'AN
Year of Publication 09.03.2018
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Year of Publication 09.03.2018
Patent
Beam -pumping unit balancing unit
KONG HONGFANG, LI GUIRONG, ZHAO HONGXIA, ZHENG YAN, CHU YUEQIN, ZHOU XIAODONG, ZHOU KAI, SHANG YAN'AN
Year of Publication 13.10.2017
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Year of Publication 13.10.2017
Patent