Electrochemical potential (SP log)
Input(s)
\(t_{C l}\): Chloride Ion Transference Number (dimensionless)
R: Gas Constant \((8.31)(\mathrm{J} / \mathrm{mol} \mathrm{K})\)
\(T_{a}\): Absolute Temperature (degree K)
F: Faraday Constant (96485.336) (s A/mol)
\(a_{1}\): Activities of 1st Electrolyte (dimensionless)
\(a_{2}\): Activities of 2nd Electrolyte (dimensionless)
Output(s)
\(E_{c}\): Electrochemical Potential (V)
Formula(s)
\[
E_{c}=2 * t_{C l} *\left(\frac{R * T_{a}}{F}\right) * \ln \left(\frac{a_{1}}{a_{2}}\right)
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 6, Page: 131 .