Lithologic hydrocarbon reservoirs are the main reservoir type in Moliqing fault depression of Yitong Basin,in which Shuangyang Formation is the exploration and development target strata in Moliqing oil field.Through analyzing drill core,logging and oil testing data,the second member of the Shuangyang Formation can be divided into five sand groups in descent order,which are mainly from subaqueous fan and fan delta sedimentary sand body,and are mainly distributed in Kaoshan depression controlled by contempora...