Chemical Performance Evaluation and Economic Benefit Analysis of Corrosion Resistant Coatings for Oil and Gas Pipelines

In order to improve the corrosion resistance of oil and gas pipelines, this study conducted a chemical performance evaluation and economic benefit analysis of corrosion-resistant coatings for oil and gas pipelines. Prepare corrosion-resistant coatings for oil and gas pipelines, apply them onto steel plate specimens, prepare samples, conduct tests on heat resistance, electrochemical impedance, etc., and complete the chemical performance evaluation of the coatings. Based on cost analysis, conduct an economic benefit study on the corrosion-resistant coating. The experimental results show that the corrosion-resistant coating can maintain the stability of the structure in high temperature environments, with a high impedance value. It can effectively block the corrosion of the substrate by electrolyte solutions, significantly reduce the corrosion rate, and protect pipeline steel plates from corrosion damage. At the level of economic benefit analysis, taking into account the cost of coating preparation, construction, and maintenance saved due to reduced corrosion during long-term use, although the initial investment of this corrosion-resistant coating was relatively high, its excellent anti-corrosion performance effectively reduced pipeline maintenance costs and replacement frequency, demonstrating significant economic benefits in long-term operation. Meanwhile, its excellent weather resistance and durability reduce the downtime losses caused by frequent maintenance, further enhancing the overall economic benefits.