# Increase mud density by calcium carbonate

## Input(s)

\(W_{1}\): Initial Mud wt. (ppg)

\(W_{2}\): Required mud wt (ppg)

## Output(s)

B: Sacks of Calcium Carbonate required per \(100 \mathrm{bbl}\) (stroke/100bbl)

## Formula(s)

\[
B=945 * \frac{W_{2}-W_{1}}{22.5-W_{2}}
\]

## Reference(s)

Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 82.