Engineering Physics Annotation << Back Approbation of an Approach to Constructing and Setting Up Hydrodynamic Models in the (Software Package) PC RN-KIM, Taking Into Account the Correlation Dependence of Compressibility on Clay Content Kondratyeva N.R., Minibaev M.R., Shtinov V.A., Davletbaev A.Ya., Kunafi n A.F., Schutsky G.A. Miroshnichenko V.P., Sergeychev A.V. The paper proposes an algorithm for constructing and setting up hydrodynamic models that allows taking into account the compressibility of clay interlayers, which are clearly visible on the curves of geophysical well surveys, and clay inclusions in the pores of the reservoir. The proposed method is based on the construction of a compressibility cube using a correlation dependence obtained on the basis of laboratory studies to determine the compressibility coeffi cient of the pore space, taking into account the clay content. In addition to the elastic properties of clay inclusions, the hydrodynamic model also takes into account their fi ltration-capacitive properties. The work was carried out for one of the deposits in Western Siberia. The degree of infl uence of the elastic and fi ltration-capacitive properties of clay inclusions, determined from the results of laboratory experiments, was assessed by the dynamics of the main development indicators. Numerical calculations have established a signifi cant contribution of the compressibility of clay inclusions to the rate of change in fl uid fl ow rate, the dynamics of reservoir pressure, and the nature of well fl ooding. The presence of clay interlayers in the hydrodynamic model changes the pressure distribution pattern. Reduced reservoir pressure in reservoir intervals is compensated by increased pressure in poorly drained clayey intervals. Water-saturated clays are discharged into sandstone intervals, which affects the water cut of the product. A new approach to constructing geological-hydrodynamic models that take into account not only the properties of reservoir intervals, but also the elastic and fi ltration-capacitive properties of clay inclusions, is relevant for deposits with a high clay content. Keywords: Hydrodynamic model, pore space compressibility coeffi cient, clay inclusions, relative clay content, lowpermeability reservoir. DOI: 10.25791/infi zik.10.2024.1431 Pp. 34-44.