Electric direct drive workover rig
YUAN LIFENG, WANG WENHAN, BI YANWEI, LI CHUNLEI, XU LIJIA, XIAN YAOGUO, CAO HANXUAN, WANG ZE, NAN SHUGUO, CAO YUEXIN, GE RUIYU, WU JUNXING, LIU XIANGANG, WU ZERANG, GE DAJIANG, YANG JIE, TONG DECHEN, YUAN BO
Year of Publication 18.10.2019
Get full text
Year of Publication 18.10.2019
Patent
Oil pumping unit mule head swinging device
YUAN LIFENG, WANG WENHAN, BI YANWEI, LI CHUNLEI, XU LIJIA, XIAN YAOGUO, CAO HANXUAN, WANG ZE, NAN SHUGUO, CAO YUEXIN, GE RUIYU, WU JUNXING, LIU XIANGANG, WU ZERANG, GE DAJIANG, YANG JIE, TONG DECHEN, YUAN BO
Year of Publication 15.10.2019
Get full text
Year of Publication 15.10.2019
Patent