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 .