Formula 4.64
Pressure loss due to perforations during hydraulic fracturing
Input(s)
$\rho$: Specific Gravity $\left(\mathrm{lb} / \mathrm{ft}^{3}\right)$
$q$ : Real Flowing Rate $\left(\mathrm{ft}^{3} / \mathrm{s}\right)$
$g_{c}$: Unit Conversion Factor $\left(32.2(\mathrm{lb} \cdot \mathrm{ft}) /\left(\mathrm{lbf} \mathrm{s}^{2}\right)\right.$
$A_{2}$ : Fracture Area in time " $\mathrm{t}$ " $\left(\mathrm{ft}^{2}\right)$
Output(s)
$\Delta P_{p}$: Pressure Loss in Sourced by Perforations during Hydraulic Fracturing (psi)
Formula(s)
$$ \Delta P_{p}=\frac{\rho \cdot q^{2}}{1.345 \cdot g_{c} \cdot A_{2}^{2}} $$
Reference(s)
Saydam, T., (1967). Principles of Hydraulic Fracturing, ARI Publishing Co., Page: 28.