Page 37 - DGH_Annual_Report

India's Sedimentary Basins: Subsurface Insights 37

2.2.2 RAJASTHAN BASIN

Rajasthan is a Category I basin with commercial discovered in-place.
Barmer and Jaisalmer sub-basins geographically overlaps with the state(s) of Rajasthan.

Bikaner-Nagaur sub-basin geographically overlaps with the state(s) of Punjab, Rajasthan.

Source: DGH Internal Source: DGH Internal

Barmer sub-basin is situated in the western and Eocene (Barmer Hill, Fatehgarh, Thumbli
region of India and the most prominent among There are also oil and gas deposits known from
the three sub- basins of Rajasthan basin. The sub- Deccan Trap and Basement.
basin accounts for one-fourth of oil production
of the country. Fatehgarh and Barmer Hill of Paleocene are
major producing sequences of the subbasin.
The Jaisalmer sub-basin is mainly a Mesozoic rift
basin set up during Permo-Triassic period. Permo-Triassic & Jurassic plays in Jaisalmer and
Cretaceous (Ghaggar-Hakra) plays in Barmer are
The Bikaner-Nagaur is a shallow Proterozoic potential exploration targets.
sub-basin with a Pre-Cambrian basement
comprised of the Malani Igneous Suite and Delhi • Hydrocarbon prospectivity and Basin
Metamorphites. The sub-basin is a part of Punjab maturity:
platform of Indus basin, having a general dip In the basin, 7 plays are identified within
towards west and sedimentary units thickening Basement, Cretaceous, Volcanics, Paleocene-
towards northwest. Eocene in Barmer sub-basin. 9 plays are known
Commercial hydrocarbon occurrences are found within Jurassic-Cretaceous, Paleocene-Eocene
in different stratigraphic intervals ranging from in Jaisalmer sub-basin. 3 plays are located within
the oldest sediments of Cretaceous (Ghaggar- Pre- Cambrian in Bikaner-Nagaur sub-basin.
Hakra) to the youngest sediments of Paleocene Petroleum system was modelled in 3D basis
adequate datasets.