FIELD: mining; chemistry.
SUBSTANCE: invention relates to a composition for water isolation in a bottomhole formation zone with mineralized water. Composition contains oil-soluble surfactant Neonol AF9-6 and degassed oil with viscosity of not more than 50.0 mPa⋅s. Ratio of components: Neonol AF9-6 – 1.0–30.0 wt.%; degassed oil with viscosity of not more than 50.0 mPa⋅s – balance up to 100 wt.%.
EFFECT: reduced permeability of water-conducting channels and interlayers of depleted oil deposits due to intensification of flow-diverting and water-insulating properties of the composition.
1 cl, 4 tbl
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