多波波场正演模拟方法及储层多波特征分析——基于交错网格有限差分高精度弹性波正演模拟

In order to research and recognize the wave fields characteristics of the elastic wave in the various reservoir media, and facilitate to the interpretation of the multi-wave seismic data, high-precision numerical simulation is one of the effective ways. Based on elastic wave equation, this paper adopts the high-order staggered-grid finite-difference technology to simulate seismic wave propagation in isotropic media and anisotropic media, acquires the elastic wave feilds of the different types of media. This paper also analyzes the multi-wave wave fields effect of anisotropy coefficient. The wave feilds snap of high-precision numerical simulation shows that this method can acquire the high-precision imaging, simultaneously establishes the solid fundation to study the elastic wave fields characteristics and the dissemination law in the complex media.