New Inflow Performance Relationship for solution-gas drive oil reservoirs

After the development of the new model, its accuracy was compared with the most common IPR models that can be computed with the readily available test and field data (Vogel, Fetkovitch, Wiggins, and Sukarno). Twelve field cases were used for comparison. The best two methods were our new model and that of Fetkovich׳s with average absolute error of 6.6% and 7%, respectively. However, the new method has the advantage of requiring only one test point as opposed to Fetknovich׳s which requires a multi-rate test. A method to compute future IPR performance was also developed and tested against field data with superior results to other available models. Finally, the application of the new model is illustrated with field examples for current and future IPR computations.