Material balance for cumulative water influx - Havlena and Odeh

Input(s)

G: Gas in Place (SCF)

$\mathrm{E}_{\mathrm{G}}$: Gas Expansion Term (bbl/SCF)

$\mathrm{W}_{\mathrm{e}}$: Cumulative Water Influx (bbl)

Output(s)

F: Fluid Withdrawal (bbl)

Formula(s)

$$ \mathrm{F}=\mathrm{G} * \mathrm{E}_{\mathrm{G}}+\mathrm{W}_{\mathrm{e}} $$

Reference(s)

Ahmed, T., McKinney P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 3, Page: 209.