Processing and traveltime inversion of seismic diffractions in anisotropic media
Depth images based on seismic diffractions help identify heterogeneities in the subsurfacemissing in reflection-based sections. Diffractions also carry information from a wide rangeof wave-propagation directions, which can benefit anisotropic parameter estimation. One ofthe main challenges in utilizing diffraction events in imaging and velocity analysis is theirseparation from the more intensive reflections.Separation of diffractions can be achieved using the so-called specularity of seismic events,which is a measure of the deviation from Snell’s law. Here, I analyze two formulations ofspecularity ...
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