METAL CORROSION INHIBITOR IN WATER-OIL-HYDROGEN SULFIDE MEDIA Russian patent published in 2003 - IPC

FIELD: corrosion protection. SUBSTANCE: corrosion inhibitor, which can be used in oil-production area to protect equipment operated in hydrogen sulfide media, contains, as active ingredient, product of interaction of boric acid, diethanolamine, and mixture of fatty acids, saturated and unsaturated, with C8- C24-hydrocarbon radical at molar ratio 1:3:(1-3), respectively, said product constituting 20 to 40% of the weight of inhibitor (active ingredient plus solvent). EFFECT: enhanced protection effect with lack of carcinogenic substances and no skin-resorption effect.