Abstract
In this article new relative permeability correlations for Saudi formations are developed. A systematic method for estimating the relative permeability curves for both oil-water and oil-gas systems, using the developed correlations, are suggested. In addition an application of a new technique for determining the average two-phase, oil-water and oil-gas, relative permeability curves to some Saudi reservoirs is indicated. Also, a systematic method for estimating the average two-phase relative permeability curves, using this technique, is suggested. The results showed that the developed correlations predicted the average relative permeability of Saudi reservoirs more accurate than published correlations. The results also showed a deviation between the average relative permeability curves generated from core analysis data and that estimated using well log and pressure build-up data analysis. Comparisons of the results of the developed equations with that of published correlations are shown.