FIELD: chemistry.
SUBSTANCE: invention aims at extended range of effective and technological remedies for corrosion of downhole equipment in hydrochlorid-acid bottom-hole treatment. Method involves "ПОД" oil and formaldehyde condensation in ratio, wt %: "ПОД" oil 30.0-50.0, formaldehyde - the rest. Reaction product is aminated by bubbling reaction mass with gaseous ammonia until amine number is at least 40 mg KOH/g. Thereafter made aminated product is mixed with organic solvent chosen of: methanol, ethanol, isopropylene, acetone, fusel oils in ratio as follows, wt %: aminated product 50.0-95.0, organic solvent - the rest. Inhibitor contains, wt %: aminated product of "ПОД" oil and formaldehyde condensation 50.0-95.0 and organic solvent chosen of: methanol, ethanol, isopropylene, acetone, fusel oils - the rest, and produced by method specified above.
EFFECT: production of good soluble inhibitor within wide range of acid solutions and low chilling temperature - 50°C.
2 cl, 2 tbl
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