Seismic Facies Analysis in Xiashaximiao Formation Northeastern of Sichuan

Northeast of Sichuan area has a good prospecting potential with rich oil and gas resources.This paper makes an analysis on the seismic facies in Xiashaximiao formation in northeastern of Sichuan and divides into two major categories of regional and reservoirs.There are three main kinds of regional seismic facies,which are relatively continuous parallel reflection seismic facies,variable intermittent sub-parallel seismic facies and strong and weak variable discontinuous wavy reflection amplitude seismic facies.Reservoir seismic facies include former plot seismic facies and incised filling seismic facies.The planar maps of Xiashaximiao seismic facies has been work our,and regional distribution of seismic facies and evolution in this region are analyzed.