Patent ID: 8833450
Filing Date: 2014-09-16
Classification: C09K,C23F,E21B

Abstract:
1. A method for the inhibition of corrosion on ferrous metal surfaces in an aqueous environment in oil field applications, wherein said method comprises adding to said aqueous environment a corrosion inhibiting effective amount of at least one hydroxyethyl substituted amine having the formula where R is a hydrocarbyl group having 14-24 carbon atoms, or the group R′OCH 2 CH 2 CH 2 where R′ is a hydrocarbyl group with 14-24 carbon atoms; X is hydrogen, C 2 H 4 OH or the group Y is hydrogen or C 2 H 4 OH and n is 0-3, with the proviso that at least one of the symbols X and Y is C 2 H 4 OH, at most one of the symbols X is and at least one of the symbols X and Y is hydrogen.