Estimation of Three-Phase Relative Permeability And Residual Oil Data

The probability model presented in an earlier paper has been revised to yield improved estimates of 3-phase relative permeabilities. Both the old and the new models use 2 sets of 2-phase data--water-oil and gas-oil--as a basis for estimating the more difficult-to-measure 3-phase data. The relative permeabilities predicted by the new model compare favorably with the experimental data available in this literature, including data on the dependence of waterflood residual oil saturations on trapped gas saturations.