FIELD: oil industry.
SUBSTANCE: invention relates to technologies of impact on oil-and-gas-bearing formations in order to increase efficiency of oil extraction. Method of increasing oil recovery of formations involves injection of chemically active and combustible gas into oil-and-gas-bearing formations and activation of chemical reactions and physical processes therein. Chemically active and combustible gas used is compressed hydrogen, which is pumped into oil-and-gas-bearing formations. After that, air or gaseous oxygen is cyclically pumped into oil and gas formations, and then the obtained gas mixture is ignited with an electric fuse. Further, steam or water is cyclically pumped into oil-and-gas formations for oil displacement and pumping.
EFFECT: providing a high level of combustion heat of a gas mixture from reagents without harmful combustion products, increasing efficiency of heat energy transfer to productive formations and increasing oil production.
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