Quantification of Diagenesis in Carbonate Rocks using Borehole Image Logs

In summary, existing methods of using conventional core and logs to deduce porosity appear to severely underestimate secondary porosity development in carbonates. In addition to paleo-current analysis in clastics, fracture characterization and in situ stress determination, borehole images can be used to deduce secondary porosity development by combining with enlarged calipers, partial or complete losses and other engineering data. We have shown the role of diagenesis having either constructive or destructive impact depending on the scenarios. Quantifying dissolution features in subsurface reduces uncertainty. Borehole images can be complemented with 3D seismic to infer the extent of these geo-bodies laterally and vertically.