oa New Prospectivity Insights of Proterozoic Sequences in Ganga Basin, India

Basin analysis is one of the most significant and complex tasks in the field of oil and gas exploration. In the stage of basin analysis, it needs to establish the necessary boundary conditions that should be present in the basin for petroleum (hydrocarbon) to occur in rocks and accumulation. Certain conditions must be met e.g., presence of a source rock, reservoir rock, with adequate porosity and permeability, traps (structural, stratigraphic or combination), overlain by adjacent to an impermeable layer (cap rock or seal) within the basin. To estimate such conditions geophysical tools such as seismic, gravity, and magnetic are used for surveying. Therefore, this study is conducted using integrated seismic and well data in the Ganga Valley basin, which is one of the major sedimentary basins in the Indian subcontinent adjacent to Himalaya.Observed Proterozoic sequences are highly faulted, folded and fractured, and resulted in structural and stratigraphic traps in the Ganga basin. These traps are associated with Paleozoic and Proterozoic intervals, along the Regional Unconformity surface. Indicates favorable zones for hydrocarbon trapping, in Tilhar, Ujhani & Bahraich formation.