The problem to increase of deposit oil recovery with difficult stocks high-viscosity oil and bitumens is considered. Results of experimental research to decrease the effective viscosity of oil samples and increase in mobility are considered at influence of superheated steam with addition in the heat-carrier of insignificant volumes of reagent (kerosene, diesel fuel) in 0,001-0,02 % of weight. It is recommended to apply thermal and plasma-pulse influence on a layer to increase of oil recovery. Results of practical technology application are given in several geological conditions.
