Fxo / Fs approach

Input(s)

$F_{s}$: Formation Resistivity Factor (dimensionless)

$S_{x o}$: Apparent Saturation (fraction)

Output(s)

$F_{x o}$: Apparent Formation Factor (dimensionless)

Formula(s)

$$ F_{x o}=\frac{F_{s}}{S_{x o}^{2}} $$

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 12, Page: 250.