Page 63 - DGH_Annual_Report

India's Sedimentary Basins: Subsurface Insights 63

2.3.14 DECCAN SYNECLISE BASIN

Deccan Syneclise is a Category III basin with entirely undiscovered in-place, that calls for intense
exploration for a potential discovery.

The basin overlaps with the state(s) of Dadra and Nagar Haveli, Goa, Gujarat, Karnataka, Maharashtra,
Telangana.

Source: DGH Internal Source: DGH Internal

Deccan Syneclise basin is located in the western (Pre-Cambrian) and Cooper Basin, Australia
and south-central part of India. The large part of (Gondwana).
the basin is underlain by Deccan basalts.
Deccan Syneclise basin has a total hydrocarbon
The elements of petroleum system in the basin in-place of 12 MMTOE and this is entirely
are speculative. undiscovered risked in- place.
Based on gravity and DSS data about 1.5-2.0 Km • Basin datasets and studies:
thick sediments are speculated to be present
underneath Deccan Trap basalts.

The inferred geological history of this area
favours presence of Pre-Trappean Gondwana
and Proterozoic sequences in the area. The
basin has been divided into three assessment
units on the basis of tectonic framework. Two
units in north-east being proximal to Satpura
Basin may represent Pre-Trappean Gondwana
sequence whereas the third unit represents the
Proterozoic sequence.
Sub-basalt imaging to study sub-trappean
sediments is the focus area.
• Hydrocarbon prospectivity and Basin Source: DGH Internal
maturity: As of 31.03.2025, NDR has archived primary
In the basin, 2 plays exist within Precambrian and datasets of 11,076 LKM 2D seismic. Multiple
Late Paleozoic (Gondwana). 1,500m sedimentary flavours of reprocessed seismic datasets are also
thickness was envisaged in the basin. Aerial Yield archived whenever the same are provided by
method was used on analogy of Vindhyan Basin E&P Operators.