【摘要】 依据地震反射终止关系和地震反射波特征，将东濮凹陷东南部下第三系划分成两个地震层序和九个亚层序。在近万公里的地震剖面上，依据可信度较高的地震反射内部结构和外部形态，识别出前积反射等地震相类型，在综合考虑盆地结构和古地理背景的基础上，利用地质、测井等资料确定了地震相和沉积相之间的对应关系，得出了沉积体系的平面分布和垂向演化规律。结合现今勘探现状，指明了今后有利的油气勘探方向。更多还原

【Abstract】 According to the features of seismic reflection termination and sei smiC wave,Tertiary in studying area is divided into two seismic sequences and nine subsequences.Theseismic facies of progradational reflection and others in almost 10000 kilometer seismicprofiles are distinguished on the basis of reliable seismic reflection internal structures andouter shapes.With consideration of basin texture and paleogeographic settin8, thecorresponding relations between seismic facies and sedimentary facies were determined by thecomprehensive uses of geological and logging data,and the plane distribution and verticalevolution of the depositional systems in the basin were demonstrated.The hydrocarbonexploration targets in the future are pointed out based on the analysis of present oil～g Occurrence.更多还原