Formation resistivity and permeability (Carothers) relation for limestones

Input(s)

F: Formation Resistivity Factor (dimensionless)

Output(s)

k: Permeability $(\mathrm{mD})$

Formula(s)

$$ k=\frac{4 * 10^{8}}{F^{3.65}} $$

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 1, Page: 11 .