Abstract

Deltaic deposits are proved to be prolific reservoirs of oil and gas throughout the world. Exploration of delta in any basin therefore demands attention for which the present study is focused around IchapurJaguli area of Bengal Basin. Exploration history in Bengal indicates Oligocene sediments as the prime prospect for oil and gas as proved by testing in a few wells. Taking the lead from hydrocarbon bearing well E-1 a detailed study has been carried out to bring out the prospective play. 3D seismic data are used to extract and isolate high-amplitude anomalies to interpret geological features. Different seismic attributes have been generated and interpreted through volume rendering and the geometry of anomalies has been curved out for identification of distributaries during Oligocene period. Presence of Delta is identified in the form of distributary channel network which on further analysis has been identified as a prospective area for hydrocarbon exploration. Reservoirs are envisaged as the inner distributary sand bars and delta flat with marine shale as seals.