Application of full Waveform Inversion to Real Marine Dataset

The application of the FWI algorithms to real datasets is still challenging due to the limitations of data acquisition environments and the compromises of the wave propagation modeling and optimization techniques. The absence of low frequency data is one of large problems that inhibits FWI from successfully updating and produces local minima in the objective function. In this study, we suggest 4 phase FWI procedures that can yield reasonable results for real marine dataset. There procedures are intended to gradually improve the resolution and penetration depth of the inverted model through four phases. The qualitative validation of the inverted model is conducted to confirm the agreements of the inverted model and real earth using migration images, angle-domain common image gathers, comparison of shot gathers and time trace.

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