The 9th Block of the Tahe Oilfield reservoir is a block with complicated fault system and edgebottom water in the lower section of the lower oil formation. Petrel software is used for the 3D geological modeling of this block, which makes full use of drilling, seismic, well log and stratigraphic correlation data. This paper presents a practical 3D geological model through seismic inversion, integrated with lithofacies curves and porosity and permeability curves as well as evaluations of various stochastic models and modeling methods available.