India's Hydrocarbon Outlook – 2022-2023

114 DGH: 3 DECADES OF UNLOCKING INDIA'S HYDROCARBON POTENTIAL information is derived from the geoscientific data which is acquired through geophysical surveys and drilling of parametric wells. Among the geophysical surveys, seismic surveys are the most advanced and preferred methods to get subsurface images of sedimentary sequences and wells drilled give accurate information of rocks and the much-needed calibration of the depth of investigation. The ‘geological information’ is thus rooted in 'geoscientific data', which eventually forms the basis of hydrocarbon resource mapping and prospectivity assessment. For acquiring authentic information about a country's subsurface geology, a sound geoscientific database of the country is very much a key necessity. The initial insight into the basins helps in planning the future exploration activities enabling increase in basin areas for hydrocarbon exploration, identification of the prospective areas, carving out the blocks, and generating the interest of bidders in Open Acreages Licensing Policy (OALP) etc. which will add more acreages. To build a reliable and robust geoscientific database covering all sedimentary basins of India, a comprehensive appraisal of the basins by acquiring close-grid 2D seismic, in un-appraised and partially appraised areas and drilling of at least one parametric well in each of the basin for accurate information of lithology and the much- needed calibration of the depth of investigation was required. Resource Assessment Studies (RAS) required to be undertaken for upgradation of prospectivity perception of the basins by integrating acquired data. So, with the aim to undertake a comprehensive appraisal of the Indian sedimentary basins with at least one parametric well in each basin and to build a reliable and robust geoscientific database covering all sedimentary basins of India, Mission Anveshan project has been planned duly aligned with the E&P Vision 2025.