Slow compressional wave in porous media: Finite difference simulations on micro-scale
MetadataShow full item record
© 1996-2018 Society of Exploration Geophysicists. All rights reserved. We perform wave propagation simulations in porous media on microscale in which a slow compressional wave can be observed. Since the theory of dynamic poroelasticity was developed by Biot (1956), the existence of the type II or Biot's slow compressional wave (SCW) remains the most controversial of its predictions. However, this prediction was confirmed experimentally in ultrasonic experiments. The purpose of this paper is to observe the SCW by applying a recently developed viscoelastic displacement-stress rotated staggered finite-difference (FD) grid technique to solve the elastodynamic wave equation. To our knowledge this is the first time that the slow compressional wave is simulated on first principles.
Showing items related by title, author, creator and subject.
Amplitude of Biot's slow wave scattered by a spherical inclusion in a fluid-saturated poroelastic mediumCiz, Radim; Gurevich, Boris (2005)Spatial heterogeneity of hydrocarbon reservoirs causes significant attenuation and dispersion of seismic waves due to wave-induced flow of the pore fluid between more compliant to less compliant areas. This paper investigates ...
Gurevich, Boris (2002)Attenuation and dispersion of elastic waves in fluidsaturated rocks due to pore fluid viscosity is investigated using an idealized exactly solvable example of a system of alternating solid and viscous fluid layers.Waves ...
Karpfinger, Florian; Muller, Tobias; Gurevich, Boris (2009)A consistent and unified formulation of Green’s functions for wave propagation in poroelastic solids based on Biot’s theory is given. Over the last decades various authors have made the attempt to derive different Green’s ...