A Novel Mathematical Model Considering Real Gas PVT Behavior to Estimate Inflow Performance Relationship of Gas Well Production

Inflow performance relationship (IPR) is one of the most important methods for analysis dynamic characteristics gas reservoir production. The objective this study was to develop a model improve accuracy IPR evaluating and predicting production reservoirs. In paper, novel mathematical model, taking into account real PVT behavior, developed accurately estimate inflow relationship. By introducing pseudo-pressure function properties database, eliminates error caused by linearization method improves calculation accuracy. results show that more than 90% energy in flow field consumed inertial forces, which leads significant high-velocity non-Darcy effects reservoir. permeability, original pressure, stress sensitivity coefficient, skin factor have great impact on This predicts curves with excellent high efficiency. high-precision well lays solid foundation analysis, rational proration, intelligent development field.