胜利油田埋地管道外防腐蚀层的检测  

Testing of External Corrosion Protection of Buried Pipelines in Shengli Oil Field

作　　者：王健健[1] 

机构地区：[1]胜利油田胜利工程设计咨询有限责任公司,山东东营257000

出　　处：《石油化工腐蚀与防护》2004年第4期48-50,共3页Corrosion & Protection In Petrochemical Industry

摘　　要：介绍了PCM管道电流测绘系统在胜利油田埋地管道检测中的应用 ,给出了IdB -X分段图和Rg -X电阻曲线 ,系统地评价了埋地管道的外防腐蚀层质量状况。该油田海四联至孤三站输油管道全长 16km ,经检测共发现防腐蚀层破损点 12处 ,局部管段外防腐蚀层老化破损严重 (绝缘电阻低于 10 0 0Ω·m2 ,属劣级 ) ,约有 970m管道需进行处理。The application of PCM piping electric current testing system for the testing the buried pipeline of Shengli Oil Field is introduced,. The Idb-X segmental diagram and Rg-X electric resistance curve are given and the quality of external corrosion protection of the buried pipelines are systematically evaluated. The testing of the 16 Km oil pipelines from Haisilian to Gusan station of the oil field has found 12 damage points of the corrosion protection layer and pipe section with seriously degraded external protection (insulation resistance is less than 1000Ω.m2). about 970 m pipeline need maintenance.

关 键 词：外防腐蚀层 管道电流测绘系统 分段图 电阻曲线 

分 类 号：TE980.2[石油与天然气工程—石油机械设备]