GLOSSARY

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\left<\frac{k_\alpha}{\mu_\alpha} \right>  = k_{air} \left<\frac{k_{r \alpha}}{\mu_\alpha} \right>

where 

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body\displaystyle k_\alpha

formation permeability to fluid 

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body\alpha
-phase

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body\displaystyle \mu_\alpha

dynamic viscosity of fluid

LaTeX Math Inline
body\alpha
-phase

LaTeX Math Inline
body\displaystyle k_{air}

absolute permeability to air

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body\displaystyle \left<\frac{k_{r \alpha}}{\mu_\alpha} \right>


relative phase mobility

LaTeX Math Inline
body\displaystyle k_{r\alpha}

relative formation permeability to fluid 

LaTeX Math Inline
body\alpha
-phase


In most practical case of a 3-phase fluid model this will be:

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