Porosity determination - IES and FDC logs
Input(s)
\(\rho_{\mathrm{b}}\): Bulk Density \(\left(\mathrm{g} / \mathrm{cm}^{3}\right)\)
\(\rho_{\text {ma }}\): Matrix Density \(\left(\mathrm{g} / \mathrm{cm}^{3}\right)\)
\(\rho_{\mathrm{f}}\): Average Fluid Density in Pore Spaces \(\left(\mathrm{g} / \mathrm{cm}^{3}\right)\)
Output(s)
Ø: Porosity (fraction)
Formula(s)
\[
\varnothing=\frac{\rho_{\mathrm{ma}}-\rho_{\mathrm{b}}}{\rho_{\mathrm{ma}}-\rho_{\mathrm{f}}}
\]
Reference(s)
Bassiouni, Z., 1994, Theory, Measurement, and Interpretation of Well Logs. SPE Textbook Series Vol. 4. Chapter 11, Page: 210.