Early Qingshankou formation, basin dropped sharply, and the syncline structure started to form. This area was under the control of tensile and torsion stress, and on the basis of the early fracture of basal plane, a series of fractures formed which showed an en echelon arrangement on horizontal and did not extended far, and local structures were mainly fault nose. The geologic reservoir fine description and reservoir engineering approaches are combined to study the structure characteristic, the sedimentary facies and the distribution of the remaining oil. Research of the modeling techniques for geological faults in 3D is extremely important for the theoretical significance and practical value. To establish 3D visualization of geological structure model in this area using 3D geological modeling software, this paper analyses the material of 188 wells in the hei71-56 area including seismic data, well logs, drilling data, individual layer data and so on.