India’s Hydrocarbon Outlook 2024 73 A Report on Exploration & Production Activities 5. VINDHYAN BASIN Vindhyan is a Category II basin, implying that the basin has sub-commercial discovered inplace, potential to be commercially produced. The geographical area of the basin partially overlaps with the state(s) of Bihar, Madhya Pradesh, Rajasthan and Uttar Pradesh. Source: DGH Internal Source: DGH Internal Vindhyan Basin occupies the numero uno position amongst all the Proterozoic petroliferous basins of India due to its large areal extent and significant discoveries in recent years. The exploratory efforts for hydrocarbon in the basin commenced in 1970’s, it is only after the initial successes met at wells Jabera-1, Nohta-2 and Damoh-4, its hydrocarbon prospectivity has been perceived gradually. In the basin, three major stratigraphic horizons, viz. Rohtas, Mohana and Jardepahar were identified. Reservoir layers are tight with low porosity and permeability. The Arangi, Kajrahat, Charkharia Shale, and Rohtas Shale/Limestones are the principal source rock with TOC 0.5-2.85 %. Large area of the basin is overlain by Deccan Traps. Sub-basalt imaging could add to improved insights into sub-trappean sequences. Inherent uncertainties associated with age of Vindhyan strata may be corroborated with the biostratigraphic data.
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