Well-Test Analysis for Multiphase Flow

Abstract

Summary This paper is a review of well-test analysis under multiphase-flow conditions. The contributions of Perrine and Martin are noted, and the consequences of using their results are documented. The advantages of incorporating the heterogeneous nature of the porous medium for solution-gas-drive systems with the pseudopressure function are discussed. Methods to predict well-inflow performance are discussed with regard to the works of Vogel and Fetkovich. The long-time-performance prediction of wells with decline curves that incorporate the heterogeneous nature of the porous medium is addressed. The final part of this paper considers pressure-falloff data. Theoretical developments are reviewed, and problems associated with the identification of fluid banks are listed.