Seismic effects of viscous Biot-coupling: Finite difference simulations on micro-scale

摘要: [1] This paper is concerned with numerical considerations of viscous fluid effects on wave propagation in porous media. We apply a displacement-stress rotated staggered finite-difference (FD) grid technique to solve the elastodynamic equation. An accurate approximation Newtonian implemented this by using generalized Maxwell body. With approach we consider velocity predictions Biot theory for elastic waves different digital rock samples. To distinguish between low and high frequency range estimate effective permeabilities flow simulation. Our results indicate that Biot-coupling visible experiments. Moreover, influences other solid-fluid interactions (e.g., Squirt flow) are also discussed.