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Calculate Water Saturation From Well Logs
F = Formation Factor
F = c ÷ ( por ^ m )
c = cementation factor
m = cementation exponent
F = 1 ÷ ( por ^ 2 ) (for limestones)
F = 0.81 ÷ ( por ^ 2 ) or 0.62 ÷ ( por ^ 2.15 ) (for sands)
Sw = Water Saturation
Sw = ( F * Rw ÷ Rt ) ^ 1/n
n = saturation exponent
Sw = [ ( c * Rw ) ÷ ( por^m * Rt ) ] ^ 1/n