Welge extension - Fractional flow
Input(s)
\(\mathrm{f}_{\mathrm{o}}\): Fractional Flow of Oil Obtained (fraction)
\(\mu_{\mathrm{w}}\): Viscosity of Water \((\mathrm{cP})\)
\(\mu_{\mathrm{o}}\): Viscosity of Oil \((\mathrm{cP})\)
Output(s)
relpr: Relative Permeability Ratio of Water to Oil (fraction)
Formula(s)
\[
\operatorname{relpr}=\frac{\mu_{\mathrm{w}}}{\mu_{\mathrm{o}}} *\left(\frac{1-\mathrm{f}_{\mathrm{o}}}{\mathrm{f}_{\mathrm{o}}}\right)
\]
Reference(s)
Dandekar, A. Y. 2006. Petroleum Reservoir Rock and Fluid Properties. Boca Raton, FL: CRC Press Taylor & Francis Group, Chapter: 9, Page: 215.