Klinkenberg gas effect

Input(s)

$k_{l}$: Permeability of liquid $(\mathrm{mD})$

$\mathrm{p}$: Mean flowing pressure of the gas (atm)

b: Klinkenberg factor, fixed for a gas (constant)

Output(s)

$k_{g}$: Apparent permeability of gas (mD)

Formula(s)

$$ k_{g}=k_{l} *\left(1+\frac{b}{p}\right) $$

Reference(s)

Wikipedia.org.