Question

How to control internal corrosion of pipes?

Answer 1

Internal corrosion occurs due to chemical attack on the interior surface of the steel pipe from the commodities being transported within the pipeline. In some cases, the corrosive liquids may be contaminants such as water or other chemicals entrained or suspended within the commodity being transported. Typically, either the commodity’s quality is controlled, internal coatings are applied, or corrosion inhibitors utilized to prevent internal corrosion. When one or more of these protective measures break down, internal corrosion can occur.

internet corrosion may be kept under control by establishing appropriate pipeline operating conditions and by using corrosion-mitigation techniques. One method for reducing the potential for internal corrosion to occur is to control the quality of gas entering the pipeline. Also, by periodically sampling and analyzing the gas, liquids, and solids removed from the pipeline to detect the presence and concentration of any corrosive contaminants, including bacteria, as well as to detect evidence of corrosion products, a pipeline operator can determine if detrimental corrosion may be occurring, identify the cause of the corrosion, and develop corrosion control measures.