Slow compressional wave in porous media: Finite difference simulations on micro-scale

Saenger, E. and Krüger, O. and Shapiro, S. and Ciz, R. and Gurevich, B. 2006. Slow compressional wave in porous media: Finite difference simulations on micro-scale, in Proceedings of the International Exposition and 76th Annual Meeting, Oct 1-6 2006, pp. 1953-1957. New Orleans, Louisiana: SEG.

Source Title

Society of Exploration Geophysicists - SEG International Exposition and 76tth Annual Meeting 2006, SEG 2006

DOI

10.1190/1.2369914

ISBN

9781604236972

School

WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)

Remarks

Use of this publication is subject to SEG terms of use and conditions at https://seg.org/Terms-of-Use

URI

http://hdl.handle.net/20.500.11937/72985

Collection

Curtin Research Publications

Abstract

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.