1887

Abstract

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 two pore fluids. 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. This model is employed to explain the relatively strong P-wave velocity dispersion found for a limestone reservoir. We conclude that the mechanism of wave-induced flow may well explain large P-wave dispersion and attenuation in heterogeneous porous media.

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/content/papers/10.3997/2214-4609-pdb.126.6301
2009-05-10
2021-11-27
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.126.6301
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