FIELD: oil and gas industry.
SUBSTANCE: invention refers to oil extracting industry, particularly to methods of development of massive oil deposit with injection of water-gas mixture. Method includes injection of water-gas mixture into a deposit; at that mixture has been prepared at the head or in the well in the process of injection, adding of surface active substances into water, changing the degree of aeration of water-gas mixture and changing of injecting pressure. According to the invention the density of water-gas mixture at input to a bed and bottom pressure in a pressure well, medium at interval of injecting is maintained in accordance with analytical expression. The density of water-gas mixture and bottom pressure are from time to time changed with consideration to analytical expression.
EFFECT: invention facilitates increasing ratio of oil extraction.
3 cl, 2 dwg
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