A property characterising agility of the fluid
-phase under
pressure gradient with account of
reservoir permeability and
dynamic fluid viscosity:
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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 |
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| body | \displaystyle \mu_\alpha |
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| body | \displaystyle k_{air} |
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| absolute permeability to air |
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| body | \displaystyle k_{r\alpha} |
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| body | \displaystyle \left<\frac{k_{r \alpha}}{\mu_\alpha} \right> |
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relative phase mobility |
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In most practical case of a 3-phase fluid model this will be:
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| body | \displaystyle \left<\frac{k_o}{\mu_o} \right> |
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Oil Mobility
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| body | \displaystyle \left<\frac{k_g}{\mu_g} \right> |
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mobility to gas
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| body | \displaystyle \left<\frac{k_w}{\mu_w} \right> |
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mobility to water
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