Migration velocity analysis for nonlinear reverse-time migration
نویسنده
چکیده
Nonlinear reverse-time migration is a modified reverse-time migration that accounts for the nonlinear relation between seismic data and model in order to image multiply scattered waves including multiples. The illumination of multiply scattered waves yields a representation of the Earth’s subsurface that is more sensitive to model parameters, which allows for advanced seismic interpretation. The gain in sensitivity that multiply scattered waves provide also applies to velocity model building. I present a strategy for using the illumination and sensitivity of internal multiples for migration velocity analysis and illustrate this method with numerical examples.
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