水下油气生产系统可以节省大量建设投资, 因受灾害天气影响较小可靠性强, 是开采深水油气田的关键设施。海洋环境对钢材腐蚀严重, 而且水下油气生产系统投产后无法进行全面维修和维护, 因此水下生产系统的防腐蚀非常重要。本文对比分析了普通海洋工程、两个国外水下生产系统和我公司承担的国家科技重大专项子课题的防腐蚀设计, 提出了自己的观点。

Subsea production systems can save much construction investment, and are not affected by bad weather and have good reliablity, so thut the system is the key equipment for the deep water oil and gas field development and widely used around the world. Because steels may be corroded severely in sea and subsea production systems and can not be repaired after installation, it is very important to control the corrosion of subsea production systems. The corrosion control specifications of a common offshore project and three typical subsea production systems are analyzed and compared in this paper.