NEW INFLOW PERFORMANCE RELATIONSHIP MODEL FOR A SOLUTION GAS DRIVE RESERVOIR

ABSTRACT

The Inflow Performance Relationship(IPR) describes the behavior of the well’s flowing pressure and quantifies its production rate. Different IPR correlations exist today in the  petroleum industry with the most commonly used models are that of Vogel’s and Fetkovich’s. In this work, a new model to predict the IPR curve was developed, using a new correlation that accurately describes the behavior of a well flow-rate as a function of the average reservoir pressure. This new correlation was obtained using actual field cases. After the development of the new model, its validity was tested by comparing its accuracy with that of the most common IPR models sch as Vogel, Fetkovich, andWiggins. The results of this comparison showed that: the new developed model gave the best accuracy with an absolute error of 5.54%, while the other common models are ranked, according to their accuracy in the following order to be Fetkovich, Vogel, and Wiggins, with absolute errors of 6.73%, 23.18%, and 32.3% respectivel