Accumulator capacity
Input(s)
BC: Bottle Volume per capacity (gallons)
\(\mathrm{P}_{\mathrm{P}}\): Pre-charge Pressure (psi)
\(\mathrm{P}_{\mathrm{S}}\): System Pressure \((\mathrm{psi})\)
\(\mathrm{P}_{\mathrm{f}}\): Final Pressure \((\mathrm{psi})\)
Output(s)
V: Accumulator Capacity (gallon)
Formula(s)
\[
\mathrm{V}=\mathrm{BC} *\left(\frac{\mathrm{P}_{\mathrm{P}}}{\mathrm{P}_{\mathrm{f}}}-\frac{\mathrm{P}_{\mathrm{P}}}{\mathrm{P}_{\mathrm{S}}}\right)
\]
Reference(s)
Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 39.