Near surface issues associated with sand-dunes have deleterious effects on both travel-times and amplitudes in seismic reflection data. Data recorded over the study field is no exception. In order to seismically derive porosity and fracture information from deeper reservoir levels in the field, anomalies associated with the sand-dunes have to be removed in order to analyse subtle amplitude variations associated with P-wave azimuthal anisotropy. We discuss, by way of a case-study, a method recently adopted that utilizes and incorporates well-derived reflectivity maps to guide the processing flow in an amplitude friendly manner; the resultant data is suitably prepared for porosity prediction and fracture analysis.


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