Abstract
In this article the researchers have studied oil recovery processes under CO2 injection into non-homogeneous production banks with the use of a compositional hydrodynamic model. GHDM calculations has shown that at the reservoir conditions there will be mutual dissolution of oil and gas while injecting carbon dioxide. Oil-to-gas and gas-to-oil partial mass transfer will occur during oil displacement. The operational benefit will come as a result of reduced oil viscosity, greater cover ratio (reduced water-to-oil phase fluidity), and displacement coefficient (reduced surface tension). This benefit will amount to 8.5 tons of extra oil recovered. Keywords: porosity; boundary surface tension; geological hydrodynamic model; carbon dioxide.
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