| 摘要 |
FIELD: corrosion protection. ^ SUBSTANCE: invention provides inhibitor for protecting oil-field equipment against hydrogen sulfide, carbon dioxide, and oxygen corrosion, which comprises, in solvent, 1-10% of reaction product of monoethylated alkylphenol with phosphorus-containing compound and amine, 1-20% of nonionic surfactant, 5-40% of organic acid/amine reaction product, and 2-15% of interaction product of a mixture of primary and secondary aliphatic amines with low-grade dimethyl phosphite. ^ EFFECT: improved protection against corrosion, reduced preparation expenses, and extended resource of raw materials. ^ 4 tbl, 11 ex |
