Inflow performance relationship (IPR) for horizontal wells in solution gas-drive reservoirs (Fetkovich)
Input(s)
\(q_{\text {omax }}\): Maximum Flow Rate for Maximum Drawdown (STB/day)
\(P_{w f}\): Flowing Bottomhole Pressure (psi)
P: Shut in Pressure or Average Reservoir Pressure (psi)
\(\mathrm{n}\): Exponent (dimensionless)
Output(s)
\(q_{o}\): Oil Flow Rate \((\mathrm{STB} /\) day \()\)
Formula(s)
\[
q_{o}=q_{\text {omax }} *\left(1-\left(\frac{P_{w f}}{P}\right)^{2}\right)^{n}
\]
Reference(s)
Joshi, S. D. 1991, Horizontal Well Technology. Tulsa, Oklahoma: PennWell Publishing Company. Chapter: 7, Page: 240.