Initial gas cap
Input(s)
m: Ratio of Initial Gas Cap Gas Reservoir Volume to Initial Reservoir Oil Volume (bbl/bbl)
\(\mathrm{N}\): Original Oil in Place (STB)
\(\mathrm{B}_{\mathrm{oi}}\): Oil Formation Volume Factor (bbl/STB)
\(\mathrm{B}_{\mathrm{gi}}\): Initial Gas Formation Volume Factor (bbl/SCF)
Output(s)
G: Initial Gas Cap Gas (SCF)
Formula(s)
\[
\mathrm{G}=\frac{\mathrm{m} * \mathrm{~N} * \mathrm{~B}_{\mathrm{oi}}}{\mathrm{B}_{\mathrm{gi}}}
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 4, Page: 300 .