A Novel Q Compensation Filter Implementation in the Migrated Local Angle Domain

Summary In this abstract, an inverse Q-filter operating within an angle depth migration (EarthStudy 360) is presented. The filter is realized using Futterman’s model, in which the corrected effects, namely amplitude attenuation and velocity dispersion, are linked by the causality principle. Two implementations are introduced and discussed: The conventional approach, in which the filter is applied during the migration on the input acquisition time data, and a novel approach, in which the filter is applied on the 5D angle migrated gathers at a processing stage. The second leads to minimal run time cost of the filter and numerous post-migration options. Synthetic data results show good spectrum and image recovery for both methods.