
%0 Journal Article
%A Brajanovski, Miroslav 
%A Müller, Tobias 
%T Huge wave attenuation in partially saturated fractured reservoirs
%J ASEG Extended Abstracts
%D 2007/03/01
%V 2007
%N 1
%P 1-3
%K 
%R https://doi.org/10.1071/ASEG2007AB178
%U https://www.publish.csiro.au/paper/ASEG2007AB178 
%X A conceptually simple superposition model is presented for dispersion and attenuation of compressional waves in fractured porous rocks that are saturated by a mixture of liquid and gas. These two different types of heterogeneities are described by four parameters: The fracture spacing (fracture density) and fracture weakness characterizing the fractured medium; the correlation length and degree of saturation characterizing the fluid patches that are embedded between the fractures. All four controlling parameters have a clear physical meaning and can be potentially constrained if there is additional information like well-log data. This model is employed to explain the relatively strong P-wave velocity dispersion found for a limestone reservoir. The mechanism of wave-induced flow may well explain large P-wave dispersion and attenuation in heterogeneous porous media. 
