FIELD: production of oil and gas; corrosion protection of formation pressure maintenance systems and utilization of formation or waste water. SUBSTANCE: proposed inhibitor contains mixture of coal pyridine heavy bases and phenol resin-byproduct of process of production of synthetic phenol by cumol method; monatomic iso-alcohols C3-C5 (fused oil) are used as solvent. During mixing, many organic agents are formed which form strong protective film on metal surface. EFFECT: enhanced efficiency at minimum concentration of inhibitor. 3 cl, 5 tbl
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