Weight of crystalline CaCl2 and CaBr2 salt addition to brine (two-salt systems)

Input(s)

$C_{95}$ : Concentration of $95 \% \mathrm{CaBr}_{2}$ in the Initial undiluted Brine $(\mathrm{lbm} / \mathrm{bbl})$

$m_{94}$: Mass of $94 \% \mathrm{CaCl}_{2}$ needed to weight up diluents water ( $\mathrm{lbm}$ )

$C_{94}$ : Concentration of $94 \% \mathrm{CaCl}_{2}$ in the Initial undiluted Brine $(\mathrm{lbm} / \mathrm{bbl})$

$W_{i}$ : Water Fraction in the initial undiluted Brine $(\mathrm{bbl} / \mathrm{bbl})$

Output(s)

$m_{95}$ : Mass of $95 \% \mathrm{CaBr}_{2}$ needed to weight up diluents water (lbm)

Formula(s)

$$ \begin{aligned} & m_{95}=\left(V_{8.33}\right) \frac{\left(C_{95}\right)}{\left(W_{i}\right)} \\ & m_{94}=\left(V_{8.33}\right) \frac{\left(C_{94}\right)}{\left(W_{i}\right)} \end{aligned} $$

Reference(s)

Bridges, K. L. (2000). Completion and Workover Fluids (Vol. 19). Society of Petroleum Engineers, Page: 56.