PETROLEUM GEOLOGICAL CONDITION AND EXPLORATION POTENTIAL OF XIHU DEPRESSION, EAST CHINA SEA

With modern petroleum geologic theories, essential elements of petroleum system formations in Xihu depression of East China Sea, including source rock, reservoir rock, cap rock and trap, are systematically analyzed, and its exploration potential and directions are also discussed. Study results indicated that Xihu depression has basic geologicl conditions of forming largeand medium-sized gas fields and has a vast potential and many favorable domains for petroleum exploration.