FIELD: oil and gas industry.
SUBSTANCE: buffer liquid on water basis, containing coal-alkali reagent, carboxilemethylcellulose and hardener, additionally has sodium tripolyphosphate with following ratio of ingredients in percents of mass: coal-alkali reagent 8-12, carboxilemethylcellulose 0.45-1.0, sodium tripolyphosphate 0.1-1.0, hardener 0-70, water the rest.
EFFECT: higher efficiency.
1 ex, 3 tbl
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