.... For this case a new functional equation (correlation) for IPR curve in the form of power law is suggested based on the analytical derivation and using pseudopressure function approach. In contrast to the other studies where a parametric IPR equation (usually in the polynomial form) with subsequent selection...

... instantaneous ipr curve pressure change flow rate instantaneous reservoir pressure drillstem/well testing upstream oil & gas optimization bottomhole pressure correspond drillstem testing inflow performance multi-well system productivity index ipr curve artificial intelligence well performance...