Stroke per minute required for a given annular velocity

Input(s)

AV: Annular Velocity $(\mathrm{ft} / \mathrm{min})$

AC: Annular Capacity (bbl/ft)

$\mathrm{q}_{\mathrm{o}}$: Pump Output (bbl/stroke)

Output(s)

SPM: Strokes Per Minute Required (unitless)

Formula(s)

$$ \mathrm{SPM}=\frac{\mathrm{AV} * \mathrm{AC}}{\mathrm{q}_{\mathrm{o}}} $$

Reference(s)

Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 12.