Abstract

The improvement in seismic imaging depends on many factors like signal-to-noise (S/N) ratio, complexity of the subsurface geology, quality of velocity analysis, migration algorithm, and domain of imaging such as time or depth etc. In this paper, preparation of better interval velocity and full angle azimuth wavefield decomposition or local angle domain depth imaging is explained in detail. The methodology was applied to an onland seismic data set from Krishna Godavari (KG) Basin and encouraging results were obtained in terms of enhanced resolution, better reflection continuity showing subtle stratigraphic features. The processed outputs are expected to help in prospect evaluation, basin modelling, and reservoir characterization which will help in identifying hydrocarbon prospects and formulating exploration strategies.