管道C扫描内检测技术在塔河油田的应用

摘要

塔河油田集输管道腐蚀失效基本全因管道内壁点蚀腐蚀造成穿孔，常规外防腐层管中电流法PCM检测并不适用。2012年起，油田现场通过高程检测、规律分析等方式预测易腐蚀管段，再用现场漏磁或C扫描检测内腐蚀，通过一定量的内腐蚀检测数据对管道剩余强度及寿命预测，进而提前安排管道治理方式和时机，将腐蚀失效造成的损失降至最低。%Tahe oilfield gathering and transportation pipeline corrosion failure due to pitting corrosion basic pipe wall perforation, conventional external anticorrosive coating tube current method is not suitable for PCM detection. In 2012, the oil field by elevation detection, rule analysis, prediction of corrosion pipe section, and then the magnetic flux leakage or aC scan to detect internal corrosion, the corrosion detection data of certain amount of pipeline residual strength and life prediction, and then advance arrangements for pipeline management mode and time of corrosion failure, will cause losses to a minimum.