Incremental cumulative oil production in undersaturated reservoirs
Input(s)
\(N_{p}\): Cumulative Oil Production (STB)
\(\phi_{o}\): Oil PVT Function (rb/STB)
\(G_{p}\): Cumulative Gas Production (MSCF)
\(\phi_{g}\): Gas PVT Function (rb/MSCF)
GOR: Average Gas Oil Ratio (SCF/STB)
Output(s)
\(\Delta N_{p}\): Incremental Oil Produced (STB)
Formula(s)
\[
\Delta N_{p}=\frac{1-N_{p} * \emptyset_{o}-G_{p} * \emptyset_{g}}{\left(\varnothing_{o}\right)+\left(G O R * \emptyset_{g}\right)}
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 5, Page: 335 .