India’s Hydrocarbon Outlook 2024 39 A Report on Exploration & Production Activities 2. MUMBAI OFFSHORE BASIN Mumbai Offshore is a Category I basin, implying that the basin has significant commercial Mumbai basin is exclusively offshore and it is located along the West Coast of Indian peninsula. The basin is the most prolific petroliferous provinces of India, contributing nearly half of oil and gas production of the country annually. The deepwater part of the basin is not enough explored and opportunity lies to chase the basinward extension of prospective plays (Paleocene and Eocene). Similarly, Mesozoic plays lying below the Deccan basalts are still elusive in the basin, hence sub-basalt exploration for Mesozoic play remains an opportunity. The northerly located Saurashtra basin and southerly Kerala-Konkan basin have Mesozoic sequences identified and discovered. Commercial hydrocarbon occurrences spread over the Tertiary stratigraphic interval ranging from the oldest sediments of Paleogene to the youngest sediments of Plio-Pleistocene. The hydrocarbons are mostly thermogenic, however the basin has witnessed discovery of biogenic gas within shallow plays. Deepwater areas have a very few wells drilled. Deeper sequences, including Paleocene-toEocene are the future targets of exploration, particularly in Tapti-Daman area. Both thermogenic and biogenic petroleum systems exist with varying TOC in the range of 0.9-12%. Results of petroleum systemmodelling suggest that areas around Bombay High hold Source: DGH Internal Source: DGH Internal discovered inplace, potential to be produced at an optimum level.
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