A Simple Approximate Method to Predict Inflow Performance of Selectively Perforated Vertical Wells

Abstract This paper presents an approximate model to forecast the productivity of selective perforated wells. The model includes algebraic equations and it could be easily computed using a programmable calculator or spreadsheet program. The model has been compared against the rigorous 3D semi-analytical model and software existing in the literature. The approximate model compares well against the 3D model and the software. The model is useful for designing perforation parameters.