Storativity of fractures
Input(s)
\(\phi_{\mathrm{f}}\): Porosity of Fracture (fraction)
\(\varnothing_{\mathrm{m}}\): Porosity of Matrix (fraction)
\(\mathrm{h}_{\mathrm{f}}\): Fracture Thickness \((\mathrm{ft})\)
\(\mathrm{h}_{\mathrm{m}}\): Matrix Thickness (ft)
\(c_{\mathrm{tf}}\): Total Fracture Compressibility (1/psi)
\(\mathrm{c}_{\mathrm{tm}}\): Total Matrix Compressibility (1/psi)
Output(s)
\(\omega\): Storativity of Fracture (dimensionless)
Formula(s)
\[
\omega=\frac{\emptyset_{\mathrm{f}} * \mathrm{~h}_{\mathrm{f}} * \mathrm{c}_{\mathrm{tf}}}{\emptyset_{\mathrm{f}} * \mathrm{~h}_{\mathrm{f}} * \mathrm{c}_{\mathrm{tf}}+\emptyset_{\mathrm{m}} * \mathrm{~h}_{\mathrm{m}} * \mathrm{c}_{\mathrm{tm}}}
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter:1, Page: 82 .