<p>Reservoir sands deposited in a deltaic environment are normally associated with point bars, crevasse splays, and distributary mouth bars, which often shale out over short distances. In a strati-structural entrapment situation, understanding the geometry and characteristics of these reservoir sands becomes important for the placement of future exploratory wells. The East Godavari sub-basin is characterized by growth fault-related rollover structures that were formed during Paleogene–Neogene times in a deltaic environment. The study area involves a gas-bearing structure, wherein a well with thick sands of over 50 m at Lower Eocene level shales out to a couple of meters in another well located about a kilometer west of it. Gas is discovered at different sand levels. The present study aims to understand the distribution of these sands with respect to the facies changes and reservoir distribution. Structural mapping was carried out in a 3D seismic volume for two pay-sand levels in Lower Eocene after integrating with well logs. Instantaneous and geometric attributes were extracted and analyzed. Instantaneous bandwidth, a transmissive attribute that relates to various physical conditions in the sub-surface, has clearly brought out the channel complex. These sub-aqueous channels appear to change their course frequently due to sedimentary influx and are the primary reason for not finding channel cut features in the amplitude data. The instantaneous bandwidth attribute highlights the varying absorption characteristics along the channel. Areas that show higher absorption characteristics, indicating high porosity and high fluid saturation, have to be seen in conjunction with contact limits within the structure to find better locales for hydrocarbon exploration.</p>