Oil and gas exploration in most areas and major horizons of Songliao Basin have reached a stage of high maturity.Presently,there are few structural trap reservoirs remaining to be drilled in the basin,and major targets
文摘Oil and gas exploration in most areas and major horizons of Songliao Basin have reached a stage of high maturity.Presently,there are few structural trap reservoirs remaining to be drilled in the basin,and major targets