Connector, connecting mechanism, tripping system and rod column tripping method
YANG GAO, ZHANG FUQIANG, YAN JIAFU, YANG ZHIMIN, LIU SHOUJUN, HU ZHIQIANG, LUO GANG
Year of Publication 31.07.2018
Get full text
Year of Publication 31.07.2018
Patent
Method and device for automatically judging safety of target in high-energy pipeline rupture range
PENG JIN, GUAN FENGHUA, YAN JIAFU, GUO YONG, SUN QINGBIN, LU YONGQI, ZHU HE
Year of Publication 16.04.2019
Get full text
Year of Publication 16.04.2019
Patent
Automatic temperature control device for hydraulic system of coiled tubing machine
LIU PINGGUO, SONG ZHIGUO, MA QING, YAN JIAFU, YANG ZHIMIN, DUAN WENYI, RUI QUNYING, LIU SHOUJUN, HAO JUN, ZHOU ZHONGCHENG, HE HUIQUN
Year of Publication 10.03.2020
Get full text
Year of Publication 10.03.2020
Patent
Coiled tubing operation machine special for shale gas
SONG ZHIGUO, MA QING, YAN JIAFU, LIU FEI, YANG ZHIMIN, DUAN WENYI, LIU SHOUJUN, HU ZHIQIANG, HAO JUN
Year of Publication 10.03.2020
Get full text
Year of Publication 10.03.2020
Patent
Optical glass, glass preform, optical element and optical instrument
HE BO, HUANG TAO, YI CHIDUAN, YAN JIAFU, WU JINWEI, YUAN WEI, HOU RUI, WANG YU, ZHANG SHIDONG
Year of Publication 06.09.2019
Get full text
Year of Publication 06.09.2019
Patent
Automatic temperature control device of hydraulic system of continuous pipe working machine
LIU PINGGUO, SONG ZHIGUO, MA QING, YAN JIAFU, YANG ZHIMIN, DUAN WENYI, RUI QUNYING, LIU SHOUJUN, HAO JUN, ZHOU ZHONGCHENG, HE HUIQUN
Year of Publication 30.07.2019
Get full text
Year of Publication 30.07.2019
Patent
Eccentric abrasion prevention mud-scrapping device for carbon fiber continuous sucker rod
LIU XIN, YANG GAO, YAN JIAFU, YANG ZHIMIN, DUAN WENYI, LIU SHOUJUN, HU ZHIQIANG
Year of Publication 13.06.2017
Get full text
Year of Publication 13.06.2017
Patent
Continuous tube roller device
YANG GAO, SONG ZHIGUO, MA QING, YAN JIAFU, DUAN WENYI, LIU SHOUJUN, HU ZHIQIANG, HAO JUN
Year of Publication 05.06.2018
Get full text
Year of Publication 05.06.2018
Patent