Carbonate Fracture Permeability Characterization ? A Case History

Abstract

Results of some seismic-based methods of natural fracturing forecast have been studied and compared. Matching of seismic forecast to the well data served as a main criterion for credibility. For a number of fracture zones detected reliably by diverse well data, the accuracy of seismic-based fracture identification is shown for various methods: coherency volumes, various modifications of geometric attributes, azimuthal anisotropy, and duplex wave migration. The results of comparing the effectiveness of these methods to predict fracture permeability are given and analyzed.