Numerical Algorithm of Seismic Wave Propagation and Seismic Attenuation Estimation in Anisotropic Fractured Porous Fluid-Saturated Media

We present a numerical algorithm of seismic wave propagation in anisotropic fractured fluid-saturated porous media and estimation of seismic attenuation. The algorithm is based on numerical solution of anisotropic Biot equations of poroelasticity. We use finite-difference approximation of Biot equations on the staggered grid. We perform a set of numerical experiments of wave propagation in fractured media. Fractures in the media are connected and filled with anisotropic material providing wave induced fluid flow within connected fractures. Numerical estimations of inverse quality factor demonstrate the effect of fracture-filling material anisotropy on seismic wave attenuation.