FIELD: oil and gas industry.
SUBSTANCE: invention relates to systems and methods for intensifying or improving oil production using a miscible solvent. Method for intensification or improvement of oil production, which involves pumping of mixed injected fluid medium through injection well into hydrocarbon-containing reservoir in order to displace hydrocarbons, where mixing injected fluid medium contains unfractionated hydrocarbon mixture, which is mixed with hydrocarbons in hydrocarbon-containing reservoir, and is by-product of condensation and demethanization of hydrocarbon flows, wherein from hydrocarbon flow with melting points below about 0 degrees Fahrenheit (°F) (-18 °C), and the unfractionated hydrocarbon mixture contains at least ethane, propane, butane, isobutane, pentane and less than 1 % by volume of liquid, methane, pumping of fluid medium for regulation of mobility through injection well into hydrocarbon-containing formation to inhibit mobility of mixed injected fluid medium from injection well to production well, and production of displaced hydrocarbons through production well. Invention is developed in dependent items of the formula.
EFFECT: higher efficiency of treatment.
15 cl, 5 dwg
