ENTROPY ANALYSIS OF FILTRATION FLOWS I. M. Ametov UDC 622.276 The author discusses the possibilities of studying filtration processes on the basis of an analysis of the entropy growth rate in the system in accordance with Prigogine's principle of minimum entropy production. Results of a study of the process of displacement of a liquid in a porous medium, the effect of surfactant additions on the process of displacement and isothermal flows, and the effect of natural magnetic fields on the characteristics of filtration flows are given. JEPTER74920199913 JEPTER7492013