Pore volume occupied by injection of gas and water

Input(s)

$\mathrm{W}_{\text {INJ: }}$ Cumulative Water Injected (STB)

$\mathrm{B}_{\mathrm{w}}$ : Water Formation Volume Factor (bbl/STB)

$\mathrm{G}_{\mathrm{INJ}}$ : Cumulative Gas Injected (SCF)

$\mathrm{B}_{\mathrm{GINJ}}$ : Injected Gas Formation Volume Factor (bbl/SCF)

$\mathrm{V}_{\mathrm{t}}$ : Total Volume (bbl)

\mathrm{V}_{\mathrm{t}}=\mathrm{W}_{\mathrm{INJ}} * \mathrm{~B}_{\mathrm{W}}+\mathrm{G}_{\mathrm{INJ}} * \mathrm{~B}_{\mathrm{GINJ}}

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 4, Page: 302 .