Presented are the results of laboratory studies, field tests and commercial use of new physicochemical technologies for enhanced oil recovery from deposits with difficult-to-recover reserves, including deposits of high-viscosity oils. The technologies are based on the concept of using reservoir energy or that of the injected heat carrier to generate in situ chemical intelligent systems – gels, sols and oil-displacing surfactant systems preserving for a long time a complex of properties being optimal for oil displacement and regulation of filtration flows. Field tests of “cold” technologies carried out on high-viscosity oil pool in Usinskoye oilfield have showed their high efficiency.


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