Forward modeling of seismic wave equations in two-phase media

摘要

In this paper, a high-order difference scheme is derived from the dilatational wave equations of two-phase media, and the corresponding absorbing boundary conditions and stability conditions are also provided, based on which a high-order finite difference numerical modeling arithmetic of dilatational wave equations in two-phase isotropy media is realized. It is shown that this method can improve precision greatly while with a little increase of computation time. The method can be applied to both pre-stack and post-stack numerical modeling.