India’s Hydrocarbon Outlook 2024 55 A Report on Exploration & Production Activities Kerala-Konkan Basin is characterized by carbonate-siliciclastic shallow to deepwater sediments. The basin covers mainly the offshore provinces with isolated fringes of Miocene and younger sediments in coastal onland area. Deepest play is the Early Cretaceous and shallowest is the Oligo-Miocene. The basin has the close analogy with Gulf of Mannar for Kerala sub-basin. Petroleum system model could be constructed based on corroborative datasets of broad-grid seismic and wells Resources are entirely undiscovered and half of total resources envisaged in Late Cretaceous play below basalts. Poor sub-basalt imaging can be addressed by long-offset seismic survey, magneto-telluric, Source: DGH Internal controlled source electromagnetic surveys. Shelfal areas around Cochin Low in Kerala subbasin is the key focus area for exploration. There exist multiple source rocks ranging from Late Cretaceous to Mid Miocene with TOC for Mesozoic is 0.52-1.47%, while, for the Tertiary sequences, it ranges from 0.13-16.83%. Cretaceous kerogen is expected to be TypeIII while Type II/III is expected from Tertiary sequences. The reservoir rocks are both carbonates and clastics, spread over the entire sedimentary column. The petroleum system model has brought out Cochin low in the Kerala basin as the main kitchen area that has charged the surrounding areas. Understanding the Mesozoic sequence in the basin remains a challenge due to impoverished subsurface seismic imaging below thick basalt. In the basin, 5 plays are located within Early Cretaceous to Miocene. Petroleum system was modelled in 3D basis adequate datasets. Kerala-Konkan (KK) basin has a total hydrocarbon inplace of 602 MMTOE and this is entirely undiscovered risked in-place. Hydrocarbon prospectivity and Basin maturity:
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