Abstract

Exploration of Fractured Basement has gained momentum in Cauvery Basin after the significant oil production from Madanam Field. Cauvery Basin endowed around 7 fields which have produced oil & gas from Fractured Basement. The Basement exploration so far was based on drilling shows initially followed by cumulative fracture intensity within basement from Ant-track DFN studies. In the present work, a 1D-geomechanical study has been carried out and identified the Critically Stressed fractures in drilled wells in Mattur-Pundi area of Cauvery Basin, which are actually contributing for the hydrocarbon production. Further, the 3D fracture modelling was carried out by seismic derived Discrete Fracture Network Modelling with directional filters and identified Critically Stressed Fractures in the study area, which is a novel approach in basement studies. Chasing of Critically Stressed Fractures, which are the main hydrocarbon repositories, will certainly show the future trails for basement exploration.