There are multiple types and stages glutinite fans developed in the north abrupt slope zone of Chezhen Depression, which are the main direction of the hydrocarbon migration and have great exploration potential. The drilling results of Well Che 66 indicate that the deepwater turbidite fans usually have the better reservoir physical property and oil-bearing probability, which are the preferred exploration goals of the sandstone-conglomerate bodies. The characteristics of deposition of the deepwater turbidite fans were analyzed deeply combined with the geological a-nalysis and analytical test. The oil and gas in the glutinite lithol-ogic oil pool drilled by Well Che 66 was generated and reserved in the same formation. This oil pool experienced two formation stages,and the latter stage was the main. The hydrocarbon reservoir accumulation was mainly controlled by the reservoir physical properties, affected by the dissolution, abnormal high pressure, sedimentary facies belt and other factors.
Petroleum Geology and Recovery Efficiency
abrupt slope zone, deepwater turbidite fan, lithologic oil pool,abnormal high pressure,Chezhen Depression