Oil displacement by water-gas mixtures with heat release

The paper presents the results of numerical modeling of thermogas displacement of oil from a porous reservoir. In this method, displacement is performed by means of a heated mixture of gas and water. The injected gas is a two-component gas consisting of nitrogen and oxygen. During the reaction, heat, carbon dioxide and water vapor are released. As a result of heat release, the viscosity of oil decreases and the displacement process accelerates.