# Evaluation of hydrocyclone

## Input(s)

MW: Average Density of discarded mud (ppg)

\(\mathrm{V}\): Volume of Slurry sample collected (quarts)

\(\mathrm{T}\): Time to collect slurry sample (s)

## Output(s)

SF: Fraction percentage of solids (fraction)

MS: Mass rate of solids removed by one come of a hydroclone \((\mathrm{lb} / \mathrm{h})\)

WR: Volume of wate ejected by one cone of a hydroclone \((\mathrm{gal} / \mathrm{h})\)

## Formula(s)

\[
\begin{gathered}
S F=\frac{M W-8.33}{13.37} \\
\mathrm{MS}=19530 * \mathrm{SF} * \frac{\mathrm{V}}{\mathrm{T}} \\
W R=900 *(1-S F) * \frac{V}{T}
\end{gathered}
\]

## Reference(s)

Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 97.