FIELD: corrosion protection.
SUBSTANCE: invention relates to protection of metals against acid corrosion in water-salt hydrogen sulfide-containing media, especially to a method for preparing bactericidal corrosion inhibitor for use in oil and gas production industry, in crude oil treatment and petroleum, gas, and petrochemical products processing. Method comprises mixing nitrogen-containing and formaldehyde-containing compounds, the former being monomethylamine/dimethylamine mixture, at amine-to-formaldehyde molar ratio 1:(1.5-2.0).
EFFECT: achieved high level of protection against corrosion, acquired bactericidal properties, reduced toxicity, and lowered cost.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF ACID BACTERICIDE CORROSION INHIBITOR | 2002 |
|
RU2206636C1 |
| ONE-STEP METHOD FOR OBTAINING 1,3,5-TRIMETHYLHEXAHYDRO-1,3,5-TRIAZINE CONCENTRATE | 2014 |
|
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| TWO-STAGE METHOD OF OBTAINING 1,3,5-TRIMETHYLHEXAHYDRO-1,3,5-TRIAZIN CONCENTRATE | 2014 |
|
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| METHOD OF PRODUCING CORROSION INHIBITOR FOR OIL-FIELD ENVIRONMENTS AND CORROSION INHIBITOR | 2014 |
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| METHOD FOR MAKING INHIBITOR OF FERROUS METAL CORROSION IN ACIDIC MEDIA | 2001 |
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| HYDROGEN SULPHIDE AND/OR LOW-MOLECULAR MERCAPTAN REMOVER AND METHOD OF USING IT | 2005 |
|
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| AGENT FOR NEUTRALISING HYDROGEN SULPHIDE AND INHIBITING GROWTH OF SULPHATE-REDUCING BACTERIA | 2013 |
|
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| BIOCIDE FOR OIL AND GAS INDUSTRY | 2006 |
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| HYDROGEN SULFIDE AND MERCAPTAN NEUTRALIZER | 2006 |
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| HYDROGEN SULPHIDE NEUTRALISER AND METHOD OF USING SAID NEUTRALISER | 2009 |
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RU2418036C1 |
