Multi-Component Acoustic Characterization of Porous Media

  • Karel N. van Dalen
Part of the Springer Theses book series (Springer Theses)

About this book

Introduction

The feasibility to extract porous medium parameters from acoustic recordings is investigated. The thesis gives an excellent discussion of our basic understanding of different wavemodes, using a full-waveform and multi-component approach. Focus lies on the dependency on porosity and permeability where especially the latter is difficult to estimate. In this thesis, this sensitivity is shown for interface and reflected wavemodes. For each of the pseudo-Rayleigh and pseudo-Stoneley interface waves, unique estimates for permeability and porosity can be obtained when impedance and attenuation are combined. The pseudo-Stoneley wave is most sensitive to permeability: both the impedance and the attenuation are controlled by the fluid flow. Also from reflected wavemodes unique estimates for permeability and porosity can be obtained when the reflection coefficients of different reflected modes are combined. In this case, the sensitivity to permeability is caused by subsurface heterogeneities generating mesoscopic fluid flow at seismic frequencies. The results of this thesis suggest that estimation of in-situ permeability is feasible, provided detection is carried out with multi-component measurements. The results largely affect geotechnical and reservoir engineering practices.

Keywords

Acoustic Recordings Geotechnical Engineering Porous Media Pseudo-Rayleigh interface Waves Pseudo-Stoneley Interface Waves Reservoir Engineering Wave Modes

Authors and affiliations

  • Karel N. van Dalen
    • 1
  1. 1., Applied Geophysics and PetrophysicsDelft University of TechnologyDelftNetherlands

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-642-34845-7
  • Copyright Information Springer-Verlag Berlin Heidelberg 2013
  • Publisher Name Springer, Berlin, Heidelberg
  • eBook Packages Earth and Environmental Science
  • Print ISBN 978-3-642-34844-0
  • Online ISBN 978-3-642-34845-7
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061