FIELD: oil and gas industry, particularly methods or devices for cementing and plugging holes, crevices, or the like to isolate water-bearing stratum layers.
SUBSTANCE: method involves pumping sodium silicate solution, separating agent and sodium silicate polymerization initiator into well in the following succession: silicate polymerization initiator, separating agent and sodium silicate. Sodium silicate polymerization initiator includes 20-35 vol% of oil, 5-40 vol% of condensate, 58 vol% of 20-25% nitric acid and 2 vol% of emulsifier. Separating agent is gas condensate.
EFFECT: increased efficiency due to provision of additional porous collector space hydrophobization and increased reliability of created isolation shield.
2 cl, 3 tbl
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