Abstract：In accordance with the characters of complex structure,large lateral variation of reservoir and strong non-homogeneity of physical property in northern work area of Chengbei fault terrace zone,the paper used such reservoir prediction techniques as high-precision poststack pseudo-acoustic impedance inversion,frequency spectrum imaging analysis to carry out fine description of spatial distribution feature of Es2 reservoir and considered that the main container rocks of research area in Es2 sedimentary epoch are braid river delta front sand body and onshore beach barrier sand body,which mainly distributed in eastern part of downthrow of Zhaobei fault and both sides of Zhangdong -Haisijing fault.We further used attenuation gradient attributes to study the physical property and fluid-bearing character of reservoir,trapped distribution area of useful reservoir and determined three favorable zones and targets for exploration of lithologic reservoir.
