简述了胜利油田渤南洼陷沙四上亚段地质特征,综述了浊积岩内涵及其形成序列和模式。对渤南洼陷6口井沙四上亚段沉积相、微相进行了研究,从深水环境的岩性标志、密度流成因的岩石构造标志、浊积成因的粒度分布特征、地震和测井响应及适宜的形成条件等五个方面论证在洼陷带半深湖相、深湖相沉积背景下发育了湖底扇及远源砂砾岩透镜体,分析了渤南洼陷沙四上亚段沉积相。 The geologic features of Upper Es4 in Bonan Sag of Shengli Oilfield are briefly reviewed. The connotation, formation sequence and mode of turbidite are summarized. The sedimentary facies and microfacies of the Upper Es4 Member in 6 wells in the Bonan Sag have been studied. From the lithology of deep-water environment, the lithological structural logos of density flow, the particle size distribution of turbidimetric origin, Response and proper formation conditions, the authors demonstrated that the lacustrine fan and the far-source conglomerate lenses were developed in the semi-deep lacustrine facies and deep-lacustrine facies of the subsidence zone, and the sediments of the upper Es4 in the Bonan Sag phase.