India's Hydrocarbon Outlook – 2022-2023

50 DGH: 3 DECADES OF UNLOCKING INDIA'S HYDROCARBON POTENTIAL Cambay is a Category I basin, implying that the basin has significant commercial discovered inplace. The basin has an area of 53,500 sq. km. with 48,882 sq. km. onland area and 4,618 sq. km. shallow water area. In the basin, 7 plays exist within Basement, Paleocene, Eocene and Miocene. Thebasin is characterizedprimarilyby siliciclastic rift-fill sediments, situated in the western region of Indian peninsula. The basin is endowed with most matured petroleum provinces of India with major producing fields and 88% of total hydrocarbons already discovered. The Cambay basin, though enough exploited, still has targets for active exploration. Commercial hydrocarbon occurrences spread over different stratigraphic intervals ranging from the oldest sediment including Deccan Trap volcanics of Cretaceous-Paleocene to the youngest sediments of Miocene. Several oil and gas fields have been discovered with the state of Gujarat. The basin hosts thick pile of Tertiary sediments, ranging from Paleocene to Recent which is overlying the Deccan Trap. Cambay shale of Paleocene is the major source rock charging Middle Eocene reservoirs of Kalol (north and central) and Hazad (southern) deltaic reservoirs with Tarapur (Oligocene) acting as the regional cap rock. During later exploration, Miocene reservoirs (Babaguru) are proved to be potential reservoirs of oil and gas in southern onland part of the basin and the offshore area that extends into the Gulf of Cambay. 7. CAMBAY BASIN DGH Internal DGH Archive structural, stratigraphic and strati-structural entrapment conditions, out of which two-third of the discoveries has been made in Middle Eocene. Cambay basin is peri-cratonic rift basin with the signature of inversion tectonics during Himalayan Orogeny, falling mostly in