Formation conductivity in dual water model

Input(s)

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

$C_{w f}$: Free Water Conductivity (m ohm meter)

$C_{w b}$: Bound Water Apparent Conductivity (m ohm meter)

$f_{d l}$: Expansion Factor (dimensionless)

$Q_{v}$: Volume Concentration of Clay Exchange Cations (meq/mL)

$v_{Q}$: Volume Equivalent $\left(\mathrm{cm}^{3} / \mathrm{meq}\right)$

Output(s)

$F_{o}$: Salinity Dependent Formation Resistivity Factor (dimensionless)

$C_{o}$: Brine Saturated Rock Conductivity (m ohm meter)

Formula(s)

Reference(s)

Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 1, Page: 19.