We introduce an efficient inverse Q-filter implementation in the full-azimuth angle domain depth migration, referred as the EarthStudy 360 migration, to compensate for seismic wave attenuation and dispersion effects. The filter is realized using Futterman's model, in which these two phenomena are linked by the causality principle. Two implementations are presented and compared: The conventional approach, in which the filter is applied during the migration to the input seismic events; and a novel approach, in which the filter is applied on the seismic events of the multi-dimensional (5D) migrated gathers. Synthetic data results show spectrum enhancement and improved image recovery.
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