Mixing fluids of different densities

Input(s)

$D_{1}$: Density of fluid $1(\mathrm{ppg})$

$\mathrm{D}_{2}$: Density of fluid $2(\mathrm{ppg})$

$V_{1}$: Volume of fluid $1(\mathrm{bbl})$

$V_{2}$: Volume of fluid $2(\mathrm{bbl})$

Output(s)

$D_{f}$: Density of final fluid $(\mathrm{ppg})$

$V_{f}$: Volume of final fluid (bbl)

Formula(s)

$$ \begin{gathered} \mathrm{D}_{\mathrm{f}}=\mathrm{V}_{1}+\mathrm{V}_{2} \\ \mathrm{~V}_{\mathrm{f}}=\frac{\mathrm{V}_{1} * \mathrm{D}_{1}+\mathrm{V}_{2} * \mathrm{D}_{2}}{\mathrm{~V}_{\mathrm{f}}} \end{gathered} $$

Reference(s)

Wikipedia.org.