Abstract
The numerical simulation and characteristic analysis of VSP seismic data in the complex Loess Plateau area is of great significance to the design of seismic acquisition systems and the velocity modeling in near-surface areas. In this paper, we establish a velocity model of complex Loess Plateau and design three VSP acquisition systems in this model. Then, a finite difference method (FDM) for seismic modeling in the complex topographical condition is used to simulate the VSP data in this model with the above acquisition systems. Finally, based on the analysis to these data, some basic characteristics of VSP data in the complex Loess Plateau area are obtained and their significances to seismic exploration in this area are given.
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