Page 20 - DGH_Annual_Report

20 INDIA'S HYDROCARBON OUTLOOK 2024-2025

2 India's sedimentary basins have proven

petroleum systems. The country is one of the 171
petroleum provinces independently mapped by
U.S. Geological Survey (USGS) in 2012. The basin
area occupies 50% of country's onland area
and 73% of country's offshore within Exclusive
Economic Zone(EEZ).
India's With 26 sedimentary basins mapped and
assessed, India has discovered petroleum of 12.0
Sedimentary billion tonnes of oil equivalent and undiscovered
risked potential of 12.9 billion tonnes of oil
equivalent. While this is an estimate of conventional
Basins: petroleum occurrence, unconventional petroleum
exists in form of coal seam gas, shale plays, tight
Subsurface plays, basement fractures and gas hydrate.
Sedimentary basins are divided into three
Insights categories mapping conventional resources and
following the rationale of Petroleum Resources
Management System (PRMS).
With the objective for complete appraisal of
India's sedimentary basins, Government of India,
over the past decade has been implementing
various data acquisition campaigns through
extensive seismic surveys both onland and
offshore. As a result, 79.5% basin area are now
appraised for some meaningful subsurface
analysis. For more insights of hydrocarbon play
systems, four stratigraphic wells are planned
for drilling and further, all forms of hydrocarbon
resources are now drawn up for re-assessment
through expert consultancy. A country-level plan
is chalked out to bring out hydrocarbon potential
and their maturity in a holistic manner for a
realistic assessment of fossil-fuels, to optimally
align with the energy transition initiatives.