Mitigation of corrosion in geothermal systems
AssigneeEcolab USA Inc.
InventorJasbir S. Gill
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Abstract
Corrosion inhibitor blends including one or more ether compounds, one or more quaternary ammonium compounds, and one or more fatty acid amine condensates are disclosed. The corrosion inhibitor blends can be used in methods of inhibiting corrosion of a metallic surface in a geothermal process. In one method, an effective amount of a corrosion inhibitor blend may be added to a production well in a geothermal process. In another method, an effective amount of a corrosion inhibitor blend may be added to a geothermal medium, which could be, for example, steam or liquid brine.
Claims14
A corrosion inhibitor blend comprising an ether compound, a quaternary ammonium compound, and a fatty acid amine condensate, wherein the quaternary ammonium compound is selected from the group consisting of benzyldimethyldodecylammonium chloride, benzyldimethylhexadecylam monium chloride, benzyldimethyloctadecyl ammonium chloride, and any combination thereof.
A corrosion inhibitor blend comprising an ether compound, quaternary ammonium compounds, and a fatty acid amine condensate, wherein the quaternary ammonium compounds are a combination of at least two quaternary ammonium compounds selected from the group consisting of benzyldimethyldodecylammonium chloride, benzyldimethyltetradecylammonium chloride, benzyldimethylhexadecylam monium chloride, and benzyldimethyloctadecyl ammonium chloride.
Dependencies are inferred from the claim text.