Formation evaluation in heterogeneous carbonate reservoirs is complicated by the presence of multiple pore types. Acoustic properties, Archie cementation exponents, and permeability transforms differ according to pore type. This study evaluates the various models for estimating vuggy porosity and the Archie cementation exponent from wireline logs, illustrates the difficulty of log interpretation applied to complex pore types, and presents generalized models developed to resolve some discrepancies within various models.