The paper discloses the research results of development of the new technologies for enhanced oil recovery. We developed a new acid complexing agent of AFK brand for the bottom-hole treatment in the carbonate and clay reservoirs. Its high efficiency was verified by the laboratory tests. We developed a new technology for stimulation of high viscosity oils and natural bitumen pools by the products of liquid-phase oxidation of light hydrocarbons. The bottom-hole system for its application is presented.