CORROSION PROTECTION COMPOSITION FOR OIL FIELD EQUIPMENT

摘要

FIELD: corrosion protection. SUBSTANCE: invention, in particular, relates to corrosion protection of metals in hydrogen sulfide-containing media. Composition contains fatty acid (4-20%), surfactant (9-25%), and nitrogen-containing component: N-alkyl-2-methyl-5-ethylpyridinium bromide (3-15%) in solution or product of interaction of mixture of primary and secondary amines with industrial-grade dimethyl phosphite in hydrocarbon solvent. EFFECT: increased degree of protection and reduced congellation point. 1 tbl