The paper describes the study of the peculiar features of fluid (gas, water and oil) filtration through saline rocks of the Chayandinskoye oil/gas/condensate field. As is known, the peculiar features of filtration are closely associated with the structure of voids in reservoir rocks under study and depend on the voids type (porous, porousfractured, cavern-porous, etc.) and its parameters (porosity, sinuosity, mean radius of pores etc.).
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