Formula 4.52
Mechanical resistant torque (PCP)
Input(s)
$V_{o}$: Pump Displacement $\left(\mathrm{ft}^{3}\right)$
$\Delta P$: Pump Head Rating (psi)
$e_{p}$: Efficiency (fraction)
Output(s)
$T_{m}$: Surface Injection Pressure $(\mathrm{psi})$
Formula(s)
$$ T_{m}=144 * V_{o} * \frac{\Delta P}{e_{p}} $$
Reference(s)
Boyun, G., William, C., \& Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted Approach, Page: 14/214.