Gas produced by gas expansion
Input(s)
A: Drainage Area (acres)
\(\mathrm{h}\): Thickness (ft)
\(\emptyset\): Porosity (fraction)
\(\mathrm{S}_{\mathrm{wi}}\): Initial Water Saturation (fraction)
\(\mathrm{B}_{\mathrm{g}}\): Gas Formation Volume Factor \(\left(\mathrm{ft}^{3} / \mathrm{SCF}\right)\)
\(\mathrm{B}_{\mathrm{gi}}\): Initial Gas Formation Volume Factor \(\left(\mathrm{ft}^{3} / \mathrm{SCF}\right)\)
Output(s)
\(\mathrm{G}_{\mathrm{p}}\): Gas Produced (SCF)
Formula(s)
\[
\mathrm{G}_{\mathrm{p}}=43560 * \mathrm{~A} * \mathrm{~h} * \emptyset *\left(1-\mathrm{S}_{\mathrm{wi}}\right) *\left(\frac{1}{\mathrm{~B}_{\mathrm{gi}}}-\frac{1}{\mathrm{~B}_{\mathrm{g}}}\right)
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 3, Page: 202.