Abstract

This work presents fracture characterization at the Deccan trap top of Padra field, Cambay Basin. The applied methodology utilizes high-resolution diffraction imaging and azimuthal anisotropy analysis (VVAz and AVAz) of seismic data in migrated local angle domain (LAD). VTI anisotropic sub-surface modelling and LAD depth migration were performed for in-situ angle domain wavefield decomposition. Fracture induced HTI anisotropic effects were then characterized in LAD reflection angle-azimuth gather by means of travel-time and amplitude variation with azimuth to estimate fracture intensity and orientation.