Rock physics modeling and elastic wave forward modeling methods in a three-dimensional azimuthally anisotropic medium of orthorhombic symmetry
Li Yusheng
Wu Guochen
Abstract：In this paper,by rock physical equivalent theory and linear slip theo-ry,two sets of orthorhombic fractures are equivalent to a new three-dimensional azimuthally anisotropic medium of orthorhombic symmetry for rock physical modeling.And then elastic wave equations are solved to simulate the propaga-tion process in this medium by high-order staggered-grid finite-difference method.During the process of modeling,with the variation of physical parame-ters,we analyze CSP (common shot points)sets and the wave field characteris-tics on the conditions of different fracture densities,as well as azimuthal charac-teristics of orthorhombic anisotropy.The research results show that the aniso-tropic strengths enhance with fracture density increasing,which is reflected in the CSP sets and forwarding wavefield.
Keywords：azimuthal anisotropy of orthorhombic symmetryfracture mediumHudson theorylinear slip theorystaggered-grid finite-difference
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：12( 678-689 )