India's Hydrocarbon Outlook – 2022-2023

59 DGH: 3 DECADES OF UNLOCKING INDIA'S HYDROCARBON POTENTIAL information. There were large gaps in seismic data. Gravity, 2D Seismic and reports are of good quality whilst Magnetic, Geochemical and Wells are of fair quality. Reliability of the data is good. Inadequate geoscientific data leads to adopt areal yield method to assess the hydrocarbon resources . The trap covered area of the basin does not have seismic data. Reservoir layers are tight with low porosity and permeability. Results may be reviewed as and when new sets of data are available. The play-level undiscovered (risked) hydrocarbon inplace for Vindhyan basin is given below: The basin is spread into the state(s) of Bihar, Madhya Pradesh, Rajasthan, Uttar Pradesh. 384 MMTOE 146 MMTOE Proterozoic Paleo-Proterozoic (Mohana): Proterozoic Paleo-Proterozoic (Jardepahar): Proterozoic Paleo-Proterozoic (Rohtas): 154 MMTOE Status, available datasets and opportunities reservoir of Jardepahar play. The discovery has opened up a holistic appraisal/exploration campaign for tight play through an intensive subsurface analysis for improved reservoir characterization. Being analogue to other Proterozoic basins, the discovery has also scaled up a focussed exploration strategy of these basins. Under National Seismic Programme, conducted during 2016-22 in unappraised onland areas, 5,373 LKM broad-band 2D seismic data were acquired in the basin. As of March 1, 2023, NDR, for Vindhyan basin has archived 19,073 LKM of 2D seismic data, 1,480 SKM of 3D seismic data, 25 drilled well information. Under a short-term collaborative project on basin research, the geoscientific datasets of the basin are now independently assessed by Rajiv Gandhi Institute of Petroleum Technology (RGIPT). MADHYA PRADESH UTTAR PRADESH RAJASTHAN CHHATTISGARH MAHARASHTRA ODISHA BIHAR JHARKHAND 0 60 120 180 240 30 KM VINDHYAN BASIN LEGEND NELP BLOCK DSF BLOCK HELP BLOCK 2D SEISMIC 3D SEISMIC WELLS VINDHYAN BASIN SEDIMENTARY BASIN DGH Internal In terms of awarded acreage that are now active in Vindhyan basin, 9,155 sq km lie under NELP, 13,260 sq km are under HELP, 1,472 sq km lie under DSF. In 2018, the basin witnessed a significant gas discovery at well, Hatta-2 in tight Porcellanite