Epoxy corrosion inhibition systems including ethoxylated curing agents
AssigneeJacam Chemical Partners, Ltd.
InventorGene H. Zaid
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Abstract
Improved anti-corrosion coating systems for use in treating downhole metal surfaces in oil and gas wells are provided which include an epoxy resin together with a curing agent such as ethoxylated tallow diamine. The resin and curing agent are dispersed in an aromatic hydrocarbon dispersant, and are injected together or separately into a production well in order to form a corrosion-resistant film on downhole metal surfaces. The coating systems are resistant to freezing and provide relatively long term corrosion protection.
Claims17
An anti-corrosion coating system comprising:
- an epoxy resin in a first aromatic hydrocarbon dispersant;
- and
- a curing agent for the epoxy resin in a second aromatic hydrocarbon dispersant and selected from the group consisting of the alkoxylated amines and the imidazolines and mixtures thereof,
- said resin and curing agent when mixed together reacting to give a corrosion-resistant coating for metal surfaces.
A premixed anti-corrosion system comprising an epoxy resin and an alkoxylated amine curing agent in an aromatic hydrocarbon dispersant.
Dependencies are inferred from the claim text.