series-wound and shunt-wound model
Benefit increment perforating device
Carrying out perfecting operating
combined perforating technology
combined technology of perforating and testing
composite perforating gun
Compound technique of perforating
compound technique of perforating and fracturing
conventional jet perforating
conventional overbalanced perforating
Daqing Perforating Charge Plant
deep petroleum well perforating pill
Developing and Perfecting