Application of Corrosion Prevention Technology under Insulation Layer in Offshore Oil and Gas Fields

Corrosion Under Insulation (CUI) is a significant challenge in offshore oil and gas fields due to aggressive marine environments, complex insulation systems, and limited access for inspection. This literature review analyzes the influencing factors of CUI and explores prevention and control methods, with a particular focus on structural adjustments to insulation layers. The study examines advancements in corrosion protection technologies, including cathodic protection systems, corrosion-resistant materials, specialized coatings, and innovative insulation designs. It highlights the potential of integrating one-piece insulation structures, improved ventilation, and advanced real-time monitoring technologies to mitigate CUI effectively. The review emphasizes the importance of a holistic approach that combines preventive measures with continuous monitoring to enhance the operational lifespan of offshore platforms, reduce maintenance costs, and improve safety. As technology evolves, these strategies will strengthen the industry's ability to combat corrosion in increasingly harsh marine environments.