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The corrosion issues associated with oil and gas field development facilities in marine and tidal flat areas are complex and pose significant risks. These issues can be analyzed from the following perspectives: First, the key characteristics of corrosion. Such steel-based facilities are exposed to a marine environment with high salt concentrations and high dissolved oxygen levels for extended periods; in addition, they are subject to the effects of tidal fluctuations and wind and wave impacts. Corrosion-related failures account for around 50% of all failures of such facilities. There are also three areas where corrosion occurs most frequently: areas affected by wave splashing, regions near the low tide line, and the zone where sea mud meets seawater. II. Main types of corrosion: External environmental corrosion includes galvanic corrosion, crevice corrosion, pitting corrosion, impact corrosion, etc.; the high concentration of chloride ions in seawater accelerates localized damage to the metal surface. Internal media corrosion: includes CO₂ corrosion, H₂S corrosion, microbial corrosion, under-scale corrosion, etc., and is often caused by corrosive components present in the transported medium. III. Mainstream corrosion prevention techniques involve a combined approach using methods such as the selection of corrosion-resistant materials (e.g., bimetallic composite pipes), the use of corrosion inhibitors, regular pipe cleaning, and electrochemical protection. In some cases, online corrosion monitoring systems are also employed to dynamically adjust the prevention strategies.