如何既能保证新、老管道在最低运行费用下连续运行 ,又能提高其安全性和可靠性 ,择优选择适用并有效的管道保护方法非常重要。SNAM管道公司根据其总长近 3× 10 4 km管网的具体运行工况 ,采用了管道完整性保障策略 ,内容包括定期智能清管检测 (检测腐蚀发展趋势 )、阴极保护检测(确定阴极保护系统的有效性 )、航测与地上监测 (监测第三方干扰 /破坏 )和地质调查 (防止地面移动 ) ,取得了显著的保护效果。文中分别介绍了不同腐蚀检测方法及其适用条件 ,其中检测间隔方法学对监测腐蚀扩展速度 (腐蚀发展趋势 )具有很强的实用性 ,维护人员可根据这一方法确定管道是否修复、修复时间和修复方法。由于综合应用完整性保障策略 ,SNAM管道公司实际总维护费用下降了三分之一 ,管道的安全性和可靠性提高 ,经济效益显著 How to ensure that new and old pipe runs continuously at the lowest operating cost while improving its safety and reliability, it is very important to select suitable and effective pipeline protection methods. SNAM Pipeline adopts a pipeline integrity assurance strategy based on the specific operating conditions of its nearly 3 × 10 4 km pipe network, including regular intelligent pipe cleaning (detecting the trend of corrosion development), cathodic protection testing (determining the cathodic protection system Effectiveness), aerial and on-the-ground monitoring (monitoring third party interference / destruction) and geological surveys (preventing ground movement) and achieved significant protection. In this paper, different corrosion detection methods and their application conditions are introduced separately. The detection interval methodologies are very practical for monitoring corrosion growth rate (corrosion development trend). Maintenance personnel can determine whether the pipeline is repaired, the repair time and Repair method. Due to the comprehensive application of the integrity assurance strategy, the actual total maintenance cost of SNAM pipeline companies has dropped by one third, and the safety and reliability of the pipelines have been enhanced with significant economic benefits