FIELD: oil and gas industry.
SUBSTANCE: isolation method of water influx to well includes injection of organosilicone product to the isolated interval. At mixing to Devonian oil is added to organosilicone product; product 119-296I of B trademark is used as organosilicone product. The water is added with density of 1000-1190 kg/m3, the composite is mixed and injected to the isolated interval with the following ratio of ingredients, parts by volume: product 119-296I of B 100 trademark, water with density of 1000-1190 kg/m3 50-100, Devonian oil 10-20. The composite is reinforced by injection of liquid glass. At that buffer of fresh water is injected between the composite and liquid glass.
EFFECT: improved efficiency of water influx isolation due to regulation of time for gel formation of the injected composite and prevention of its early gel formation.
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