Oil and gas field corrosion inhibitor compositions
US12043794B2 · kind B2 · utility
0Cited by
9References
20Claims
0Family size
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Key dates
| Filing date | Aug 27, 2019 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | May 31, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/32
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.