Seismic modeling can be used to study the propagation of seismic wave and it is also a useful tool of seismic data processing and interpretation, as the geological model become more complex, especially in northwestern China. In this paper, Finite element-Finite Difference Method(FE-FDM) has been developed, as a new technique of jointed with FEM and FDM; FE-FDM employs semi-discretization of FEM in spatial domain, and FD method to solve wave equations with significant advantages and accuracy. After introducing the principle and the analysis of stability condition, two case studies are given to show that (1) FE-FDM has high accuracy, (2) it shows good image ability when simulating the geological model for some complex interface area, (3) good seismic modeling can be used to guide seismic interpretation.


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