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Fracture spacing and orientation estimation from spectral analyses of azimuth stacks
SEG Technical Program Expanded Abstracts 2005
Discrete, vertically aligned fracture systems impart one or more notches in the spectral ratios of stacked reflected seismic traces. This apparent attenuation is due to the azimuth dependant scattering introduced by the fractures. The most prominent notch is located at the frequency where the P wavelength is about twice the fracture spacing. The frequency location of the notches can be used to determine the fracture spacings. Azimuth stacks with an orientation parallel to the fractures tend notdoi:10.1190/1.2147952 fatcat:ri5g7omeofej7dszybkqo6fpei