Abstract

Cambay Basin is one of the earliest Hydrocarbon producing provinces of India. Exploratory efforts till now were focused for exploring tertiary sediments. In general wells are terminated on reaching the technical basement i.e. Deccan Trap. An exploratory well recently drilled in the eastern margin of the Basin in Charada-Mansa area has encountered about 200 meters arenaceous facies below/within(?) Deccan Trap. This sedimentary sequence was encountered after penetrating Deccan-trap thickness of more than 800 meters and the bottom of the sequence could not be established as drilling was terminated after achieving the pre-decided Target Depth. Initial dating carried out gives its age as Paleocene based on Palyno-fossil assemblage and fungal spores. Presence of such huge thickness of reservoir below/within(?) Deccan Trap is a very significant lead for future exploration of hydrocarbon in Basin margin areas and beyond.