Carbonate Fracture Permeability Characterization – A Case History

Summary

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.

Key words::

• fractures
• permeability
• prediction
• case history.