Original gas in place

Input(s)

A: Area of Reservoir (acres)

h: Average Reservoir Thickness (ft)

$\emptyset$: Porosity (fraction)

$\mathrm{S}_{\mathrm{wi}}$: Initial Water Saturation (fraction)

$\mathrm{B}_{\mathrm{gi}}$: Gas Formation Volume Factor at Initial Pressure (ft3/SCF)

Output(s)

G: Gas-in-Place (SCF)

Formula(s)

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 3, Page: 202 .