Statistical analysis of the effective velocity and mesoscopic attenuation in patchy saturated porous media

Details

Serval ID
serval:BIB_D7FF348B4DE4
Type
Inproceedings: an article in a conference proceedings.
Collection
Publications
Title
Statistical analysis of the effective velocity and mesoscopic attenuation in patchy saturated porous media
Title of the conference
77th Annual Meeting, San Antonio, United States of America
Author(s)
Santos J., Ravazzoli C., Rubino J.
Publisher
SEG International Exposition
ISSN-L
1052-3812
Publication state
Published
Issued date
2007
Pages
2708-2712
Language
english
Abstract
The study of the mesoscopic attenuation phenomena in stratified or
heterogeneous rocks is an important problem in the fields of theoretical
and numerical rock physics. In this work we present a finite element
procedure based on Biot's equations to estimate the effective phase
velocity and mesoscopic attenuation in patchy saturated porous rocks.
The method also involves a Montecarlo approach and the use of stochastic
fractals to generate different saturation patterns within the porous
sample. We perform a statistical analysis of the results for irregular
patches of gas and water for different overall saturations in the
seismic range. This allows us to conclude that phase velocities and
mesoscopic attenuation are magnitudes very sensitive to the overall
saturation of the rock. In particular, this attenuation mechanism
may cause strong attenuation of seismic signals in reservoir rocks.
Create date
25/11/2013 19:05
Last modification date
20/08/2019 15:57
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