Abstract
We discuss the application of true-amplitude migration to zero offset (MZO) to amplitude versus offset (AVO) studies on a real marine seismic data. The true-amplitude MZO is achieved by means of a cascaded application of standard normal moveout correction (NMO) plus a constant-velocity, true-amplitude dip moveout (DMO). This process is expected to be precise as long as we have only mild lateral velocity variations. The impact of the compensation of geometrical spreading losses from large offsets to short ones on AVO analysis is discussed. The reliable results obtained for dipping events makes this process interesting for AVO analysis in areas of relatively small structural complexity.
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