Dimensionless pressure - Kamal and Brigham

Input(s)

Q: Flow Rate (STB/day)

$\overline{\mathrm{k}}$: Average Permeability $(\mathrm{mD})$

$\mathrm{h}$: Thickness $(\mathrm{ft})$

B: Formation Volume Factor (bbl/STB)

$\mu$: Viscosity (cP)

$\Delta \mathrm{P}$: Pressure Difference $(\mathrm{psi})$

Output(s)

$\Delta P_{\mathrm{d}}$: Dimensionless Pressure (dimensionless)

Formula(s)

$$ \Delta P_{\mathrm{d}}=\frac{\overline{\mathrm{k}} * \mathrm{~h} * \Delta \mathrm{P}}{141.2 * \mathrm{Q} * \mu * \mathrm{~B}} $$

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 1, Page: 125.