Efficacy of polymeric liners in preventing internal corrosion of oil pipelines: A review

As a consequence of the complex mixture of oils, alkalis, salts and other corrosive substances in crude oil and its products, internal corrosion of pipelines is a significant issue for the petrochemical industry, as corrosion reactions are easily triggered between these substances and the inner surfaces of conveying pipes. Corrosion can damage equipment, increasing accident risk and reducing safety procedures effectiveness. Since corrosion accounts for a significant portion of the world's gross domestic product each year, finding methods to prevent corrosion and increase pipeline corrosion resistance has become an essential topic in oil production and industry. There is an unavoidable risk that the oil transportation system will be severely damaged during the extraction and installation of oil and natural gas wells that contain large volumes of carbon dioxide, condensate oil, hydrogen sulfide, and brine. Oil and gas are collected and transported in pipelines using a variety of fluids, including gas, water, hydrocarbons, and solids through multistage flow mediums. Due to this, as the oil and gas field develops, the transport medium becomes heavier due to the injection of water, which exacerbates the corrosion of pipelines. Thus, research institutions involved in corrosion resistance have paid close attention to pipeline internal corrosion mechanisms and technologies, and organizations seeking to improve corrosion resistance have increasingly turned to them as a focal point. This study simulates the corrosion environment of an internal pipeline based on the actual operating parameters of oil pipelines. It was intended to indicate the extent to which they could influence the development and propagation of corrosion.