FIELD: oil-and-gas industry.
SUBSTANCE: invention relate to oil exploration industry and can be used for formation water in-flow limitation. Composition producing method includes mixing of a water solution with carbon black, at that preliminary disperse carbon black in the methyl cellulose diluted water solution, at component ratio wt % : carbon black 15.0, methyl cellulose 0.05, the rest is water. Then mix received concentrated suspension with methyl cellulose water solution and carbamide at the following component ratio wt %: methyl cellulose 0.5-2.0, carbamide 2.0-20.0, carbon black 0.5-5.0, the rest is water. The composition of oil recovery rate increase characterised with the mentioned above method.
EFFECT: oil wells oil recovery rate increase due to reservoir physico-chemical treatment.
2 cl, 1 tbl, 24 ex
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