Abstract

Improper estimation of depth interval velocity may give rise to several imaging related issues like structural-pull ups/sags, improper positioning and poor focusing of reflectors. These imaging issues accentuated in case of ultra-deep-water areas because of fast varying bathymetry, presence of deep canyons and buried channels. If the above complexities are not encountered properly, the inaccurate depth interval velocity model may result in poor subsurface imaging and can generate pseudo- structural anomalies which can mislead in interpretation and in turn the exploration drive in the area.