FIELD: oil-and-gas industry.
SUBSTANCE: proposed method comprises simultaneous-separate injection of two flows of water isolation composition in well tubing. Injected first flow comprises the mix of 93.455-95.470 wt % of clay drilling mud, 4.5-6.5 wt % of ethyl acetate and 0.030-0.045 wt % of AF-grade neonol. Injected second flow, equal in volume to first one, comprises 100 wt of high-molecular liquid glass SILICONOM BN-M.
EFFECT: higher efficiency of absorption zone isolation, simplified process.
1 ex
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