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Acoustics of Random Patchy Saturation
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 69th EAGE Conference and Exhibition incorporating SPE EUROPEC 2007, Jun 2007, cp-27-00084
- ISBN: 978-90-73781-54-2
Abstract
B048 Acoustics of Random Patchy Saturation J. Toms* (Curtin University of Technology) B. Gurevich (Curtin University and CSIRO Petroleum) T.M. Mueller (University of Karlsruhe) & D.L. Johnson (Schlumberger-Doll Research) SUMMARY Mesoscale heterogeneities occur on a spatial scale which is greater than pore-scale but less than wavelength scale. The presence of mesoscale heterogeneities in saturating fluids within porous rock causes significant attenuation and phase velocity dispersion. In particular both contrast in fluid properties and spatial distribution of fluids significantly affects attenuation and dispersion. Thus patchy saturation models need to be flexible in order to account for both contrast and distribution effects.