Within the objectives of predicting the composition and properties of the produced fluid during the development of oil and gas condensate fields, this article proposes an experimental method for predicting the composition and properties of the produced fluid. In addition, the authors show its practical use in a situation where the liquid phase (precipitated condensate or oil) is filtered together with the gas phase. Based on the proposed approach, experimental data were obtained on changes in the current gas saturation of the formation, as well as on changes in the composition and properties of the produced fluid during field development for depletion. The studies make use of the real reservoir fluid samples and the data from the results of stream experiments, in order to determine the relative phase permeabilities.
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