A review on internal corrosion of pipelines in the oil and gas industry due to hydrogen sulfide and the role of coatings as a solution

This review paper explores the ongoing challenge of internal corrosion in oil and gas pipelines, specifically focusing on the damage caused by hydrogen sulfide (H2S). It highlights the superior performance of coating technologies such as chemical resistance, long-term durability, and resistance to high temperatures, including epoxy and other nonmetallic coatings, which effectively protect pipelines against H2S-induced corrosion. The review covers the practical application of coating technologies to improve pipeline durability and operational efficiency, beginning with an examination of the corrosive impact of H2S on pipelines. It reviews existing mitigation strategies, highlighting their advantages and limitations, and then analyzes nonmetallic coatings as a promising solution to H2S-induced corrosion. The paper demonstrates the benefits of these advanced coatings. It concludes with a summary of key findings and provides industry recommendations for selecting and implementing effective coating technologies, alongside suggestions for future research in this field.