Seismic wave properties in time-dependent porosity homogeneous media

Details Seismic wave properties in time-dependent porosity homogeneous media Seismic wave properties in time-dependent porosity homogeneous media

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007geoji.170.1227q&link_type=abstract

Geophysical Journal International, Volume 170, Issue 14, pp. 1227-1242.

Astronomy and Astrophysics

Astronomy

1

Dynamic Porosity, Slow P Wave, Slow S Wave

Scientific paper

It is quantified the properties of seismic waves in fully saturated homogeneous porous media within the framework of Sahay's modified and reformulated poroelastic theory. The computational results comprise amplitude attenuation, velocity dispersion and seismic waveforms. They show that the behaviour of all four waves modelled as a function of offset, frequency, porosity, fluid viscosity and source bandwidth depicts realistic dissipation within the sonic-ultrasonic band. Therefore, it appears that there is no need to include material heterogeneity to model attenuation. By inference it is concluded that the fluid viscosity effects may be enhanced by dynamic porosity.

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