Application of common reflection surface (CRS) to velocity variation with azimuth (VVAz) inversion of the relatively narrow azimuth 3D seismic land data

Abstract The fracture direction and its intensity are critical properties related to hydrocarbon characterization identification. Both these have an essential role in identifying the of migration, determining sweet spot area, optimizing drilling design. velocity variation with azimuth (VVAz) is a well-known method estimate intensity. This widespread interest because it predicts based on seismic data without any practical constraints. Despite this interest, technique requires rich 3D our case, which rare. study aims apply regularization interpolation by including wave front attributes Common Reflection Surface (CRS) before VVAz inversion. motivation using CRS enrich current improve S/N ratio. synthetic real evaluated examine scheme proposed method’s performance. Based evaluation after regularization, amplitude versus offset (AVO) phenomena, inversion results relatively consistent (or matched) model. A similar result found for case data. significant positive correlation between FMI about 0.9 obtained. Therefore, can be used as narrow