Abstract

The present study aims to evaluate the scope of Basement exploration in Panna-Mukta field of Mumbai offshore Basin in light of recently acquired OBN data. The multi-component, full azimuth capabilities of OBN data enable enhanced imaging within the basement. Consequently, the study emphasizes the characterization of faults and fractures through various attributes and to infer the tectonic processes involved in fracture development. The multiple phases of magmatism and faulting under extensional regime during Basin evolution have profoundly impacted the Basement rocks of the area. The entire area is fractured but their intensity and orientation are seen to vary across the area. Based on the pattern, direction of alignment and spatial temporal distribution, fractures and discontinuities in the area are broadly differentiated into 3 categories: Seaward dipping reflectors, fractures associated with emplacement of dykes and Fractures formed orthogonal to the main Panna High bounding fault. Integrating fracture intensities, cross trends, favorable structural positions and proximity to mature source facies, the prospective corridors for basement exploration are identified in the study