Abstract

Seismic fracture characterization utilizes the anisotropy induced by the preferential alignment of cracks in the subsurface. The azimuthal variations of traveltime and amplitude observed in the seismic data allow us to understand the extent and orientation of fractures within the strata. It is often recommended to use high-quality, full azimuth seismic data for this study. However, with vintage seismic datasets, we often fall short of the desired azimuthal coverage. The present study tries to decipher the basement complexities using limited azimuth vintage data. We utilize the local angle domain (LAD) imaging to characterize the fracture intensity and orientation and validate the same with the available downhole observations. The inferences were also tallied with a