1887

Abstract

Summary

We applied full waveform inversion to a seismic dataset from offshore Gabon. This dataset features complex geology such as diapirism, shallow gas pockets and dewatering faults. We show the results on a large production-size swath using an advanced full waveform inversion method based on a specialized quasi-Newton optimization algorithm. The updated velocity model highlights an uplift in resolution and a consistency with the geological features observed in the depth migrated stack. The benefits include identifying features and faults in the overburden, and improved top-salt characterization. This results in better imaging in both the post- and pre-salt regions, as well as a velocity model that aids the geological interpretation.

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/content/papers/10.3997/2214-4609.201600830
2016-05-30
2024-03-28
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References

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