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.