Abstract

The Cauvery Basin is a pericratonic rift basin situated along the south eastern part of Indian peninsula. Gross deposition mapping is focused specifically on the environments in which the rocks were deposited at the time period being considered. This vertical succession of facies in each well is has been used to predict the lateral facies variation. The result is a Gross Depositional Environment map for each sequence incorporating all the basic observations and tied precisely to known well data. With exploration focus shifting to synrift sediments, there is a greater need to understand the reservoir depocentres and source facies distribution with respect to gross depositional setup. The present study was taken up with the objective to provide stage wise Gross depositional environmental maps from Oxfordian (Late Jurassic) to Albian (Early Cretaceous) using forwards stratigraphic modeling approach (stratigraphic forward modelling (SFM) is a technique to provide process-based predictions. SFM links sedimentary processes to geological products in a more direct way helps understand the evolution of stratigraphic successions) in order to provide a probable distribution of expected reservoir facies within the sequence stratigraphic framework.