Inflow performance relationship (IPR) for horizontal wells in solution gas-drive reservoirs (Vogel)
Input(s)
\(q_{\text {omax }}\): Maximum Flow Rate for \(100 \%\) Drawdown (STB/day)
\(P_{w f}\): Flowing Bottomhole Pressure (psi)
\(P\): Shut in Pressure or Average Reservoir Pressure (psi)
Output(s)
\(q_{o}\): Oil Flow Rate (STB/day)
Formula(s)
\[
q_{o}=q_{\text {omax }} *\left(1-0.2 *\left(\frac{P_{w f}}{P}\right)-0.8 *\left(\frac{P_{w f}}{P}\right)^{2}\right)
\]
Reference(s)
Joshi, S. D. 1991, Horizontal Well Technology. Tulsa, Oklahoma: PennWell Publishing Company. Chapter: 7 , Page: 240.