Relationship between SSP and Rw (non-ideal shale membrane)
Input(s)
\(R_{s h}\): Shale Resistivity (ohm m)
Output(s)
\(m_{\text {eff }}\): Membrane Efficiency (fraction)
Formula(s)
\[
m_{e f f}=0.47+0.3 * R_{s h}
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 6, Page: 137.