Minor-diameter water draining and gas producing pipeline column
LI HUI, LI MINGXING, FU GANGDAN, DONG XIAOHUAN, XI YUNTAO, LI QIONGWEI, MU LIJUN, YANG QUANAN, CHENG BIHAI, ZHANG ZHENYUN
Year of Publication 20.05.2015
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Year of Publication 20.05.2015
Patent
Automatic filling device of oil soluble chemical agent and filling method thereof
LI HUI, LI MINGXING, LIU WEI, ZHU FANGHUI, DONG XIAOHUAN, YU SHUZHEN, LI QIONGWEI, CHENG BIHAI, JIANG YI, ZHANG ZHENYUN
Year of Publication 17.04.2020
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Year of Publication 17.04.2020
Patent
Integrated device for casing damage well composite repair
LI HUI, GU CHENGYI, SUN YULAI, YANG HUILI, XUE JIANQIANG, QI JIANJING, WANG XIAOYONG, LI QIONGWEI, YANG LIHUA, CHENG BIHAI
Year of Publication 01.03.2019
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Year of Publication 01.03.2019
Patent
Bridge-plug-free immovable string casing damaged well chemical plugging technology
LI HUI, GU CHENGYI, SUN YULAI, LU WENWEI, WANG XIAOYONG, QI JIANJING, LI QIONGWEI, YANG LIHUA, CHENG BIHAI, GUO GANG
Year of Publication 24.01.2020
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Year of Publication 24.01.2020
Patent
Method for sealing casing breaking point of casing damaged well in oil field
LI HUI, SUN YULAI, LIU RUI, FU CAILI, ZHANG XINZHU, WANG XIAOYONG, LI QIONGWEI, YANG LIHUA, CHENG BIHAI
Year of Publication 11.12.2018
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Year of Publication 11.12.2018
Patent
Quality detecting device and method for coating inside underground casing pipe
YUAN HUIYING, FU CAILI, ZHANG XINZHU, QI JIANJING, WANG XIAOYONG, LI QIONGWEI, YANG LIHUA, CHENG BIHAI
Year of Publication 21.09.2018
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Year of Publication 21.09.2018
Patent
Downhole tool for controlled agent release in oil and gas well shaft
LI HUI, YUAN HUIYING, SUN YULAI, YANG HUILI, FU CAILI, QI JIANJING, LI QIONGWEI, YANG LIHUA, CHENG BIHAI, ZHANG ZHENYUN, LIU AIHUA
Year of Publication 18.12.2018
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Year of Publication 18.12.2018
Patent
Water-absorbent material and preparation method and application thereof
Zhang Xinzhu, Zhu Fanghui, Li Hui, Xi Yuntao, Dong Xiaohuan, Li Mingxing, Li Qiongwei, Sun Yulai, Xue Jianqiang, Cheng Bihai
Year of Publication 10.08.2016
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Year of Publication 10.08.2016
Patent
Producing well sleeve interior anti-corrosion method
LIU NING, CHEN ZHONGQIANG, WANG XIAOYONG, DONG JUN, LI QIONGWEI, YANG LIHUA, CHENG BIHAI, HU JUNSHENG, HE ZHIWU, TANG ZEWEI, LIU AIHUA, JIANG YI
Year of Publication 19.06.2018
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Year of Publication 19.06.2018
Patent
Water-soluble wax inhibitor and preparation method thereof
LIU NING, YUAN HUIYING, LI HUI, YANG HUILI, SUN YULAI, XI YUNTAO, WANG XIAOYONG, YANG LIHUA, CHENG BIHAI, TANG ZEWEI, LIU AIHUA
Year of Publication 05.04.2017
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Year of Publication 05.04.2017
Patent
METHOD AND DEVICE FOR DETECTING DAMAGE RATE OF COATING IN OIL TUBE AND CASING IN DOWNHOLE
HE, Zhiwu, TANG, Zewei, SUN, Yulai, CHENG, Bihai, LI, Qiongwei, FU, Caili, ZHANG, Xinzhu, XUE, Jianqiang, YANG, Huili, YANG, Lihua
Year of Publication 30.03.2017
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Year of Publication 30.03.2017
Patent
CO2-driving corrosion and scale inhibitor suitable for high-mineralization-degree and high-barium-strontium environment
LIU NING, YUAN HUIYING, HE MIAO, YANG HUILI, DONG DUN, ZHOU ZHIPING, CHENG BIHAI, HE ZHIWU, TANG ZEWEI, ZHOU PEI, JIANG YI
Year of Publication 26.10.2016
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Year of Publication 26.10.2016
Patent
Automatic regulating system for water quality of injected water
Zhang Xinzhu, He Zhiwu, Zhou Pei, Fan Chen, Fu Caili, Li Yongchang, Liu Ning, Dong Xiaohuan, Li Qiongwei, Dong Jun, Cheng Bihai
Year of Publication 10.08.2016
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Year of Publication 10.08.2016
Patent
Sacrificial anode packer
ZHANG ANKANG, ZHANG XINZHU, WANG XIAOYONG, XI YUNTAO, LI QIONGWEI, YANG LIHUA, WANG SHANGWEI, CHENG BIHAI, LIU AIHUA
Year of Publication 13.07.2016
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Year of Publication 13.07.2016
Patent
Self-expanding patching device and method for oil well casing
SUN YULAI, YANG HUILI, LIU RUI, ZHANG XINZHU, XI YUNTAO, LI QIONGWEI, CHENG BIHAI, HE ZHIWU, ZHANG ZHENYUN, LI MEIYU
Year of Publication 25.05.2016
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Year of Publication 25.05.2016
Patent
Detection and evaluation method for residual quantity of aluminum anode outside oil-water well sleeve
NAN TIANJIE, LI HUI, SUN YULAI, YANG HUILI, FU CAILI, WANG HU, ZHANG XINZHU, LI QIONGWEI, CHENG BIHAI, TANG ZEWEI
Year of Publication 11.05.2016
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Year of Publication 11.05.2016
Patent
On-site fixing device for liquid anti-corrosive paint can
LI MINGXING, LIU WEI, ZHU FANGHUI, SUN YULAI, DONG XIAOHUAN, FU CAILI, ZHANG XINZHU, LI QIONGWEI, CHENG BIHAI, JIANG YI, ZHANG ZHENYUN
Year of Publication 05.04.2017
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Year of Publication 05.04.2017
Patent
Oil pipe carrying device for automatic heat spraying
ZHU FANGHUI, YANG HUILI, XI YUNTAO, ZHU TIANSHOU, MU LIJUN, YANG QUANAN, CHENG BIHAI, ZHANG ZHENYUN
Year of Publication 17.12.2014
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Year of Publication 17.12.2014
Patent
Method for increasing success rate of chemical plugging of leaking casing damage well
ZHAO WEN, RAO CHENWEI, QIU JIAYOU, ZHANG XINZHU, ZHANG YUCHAO, WANG XIAOYONG, XI YUNTAO, LI QIONGWEI, YANG LIHUA, MU LIJUN, CHENG BIHAI, HE ZHIWU
Year of Publication 12.10.2016
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Year of Publication 12.10.2016
Patent