Investigation of Thermodynamic Processes During Multiphase Fluid Filtration to the Well with Perforation Channels in Damage Reservoir for Determination of Near Wellbore Zone Properties

In this paper, new models of numerical simulation of non-isothermal multiphase inflow to the well are introduced. These models take into account a damaged near-wellbore zone with low permeability, perforation channels. With the models, it is investigated an opportunity of near-wellbore zone characterization and estimation its parameters (radius, permeability) based on the study of non-stationary downhole temperature and pressure data. Main factors of uncertainty are determined, their influence on the estimated parameters is analyzed.