India’s Hydrocarbon Outlook 2024 98 A Report on Exploration & Production Activities 17. BASTAR BASIN Bastar is a Category III basin, implying that the basin has entirely undiscovered inplace, that calls for intense exploration for a potential discovery. The geographical area of the basin partially overlaps with the state(s) of Chhattisgarh and Odisha. Source: DGH Internal Source: DGH Internal Bastar Basin, one amongst the several Proterozoic sedimentary basins is located over Peninsular India. The elements of petroleum system in the basin are largely speculative. The maximum sedimentary thickness of the basin is the order of 500-600 m. Entire Proterozoic sequence of the basin has been considered as a single play, sub-divided by a fault into two assessment units. The basin has the close analogy with Vindhyan Basin. Paleo-to-Meso-Proterozoic BasuhariRohtas play of Vindhyan Basin has been used in the analogue study. Assessment of thickness of sedimentary sequence is the focus area. The elements of petroleum system are not yet ascertained till date, but shale of Indravati Group has the potential to act as a source rock to the arkosic sandstone and carbonates that may be the possible reservoirs. Entrapment is expected to be structural in nature.
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