Shale compaction
Input(s)
\(\varnothing\): Porosity (fraction)
3: Second Empirical Constant from Porosity vs Vertical Stress Graph (1/MPa)
\(\sigma_{\mathrm{v}}\): Vertical Effective Stress \((\mathrm{MPa})\)
Output(s)
\(\emptyset_{\mathrm{e}}\): Shale Compaction (fraction)
Formula(s)
\[
\varnothing_{\mathrm{e}}=\varnothing * \mathrm{e}^{-\beta_{*} \sigma_{\mathrm{v}}}
\]
Reference(s)
Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 46.