作　　者： ; ; ; ; ;

机构地区： 中国石油化工集团公司

出　　处： 《腐蚀与防护》 2005年第3期126-128,共3页

摘　　要： 为解决老油田地下管道外腐蚀问题,延长旧管道的使用寿命,在四座计量站 50 口油井的输油管线上安装外加电流阴极保护设备,保护电位均在-0.77^-1.5V(vs.Cu/CuSO4)范围之内。地下集输管网平均腐蚀速率由0.0318mm/a下降到0.0153mm/a,集输管线腐蚀穿孔由44次/a减少到12次/a,保护效果非常显著。 In order to solve the external corrosion problem of the underground piping in old oil-fields and prolong the service life of the old piping, the cathodic protection technique was applied to 4 measuration workstations including 50 oil wells. The protection potential was in the range of -0.77^-1.5V(vs.Cu/CuSO_4). The average corrosion rate of the underground centralized transportation pipe network was decreased to 0.0153mm/a from 0.0318mm/a. The penetration number of centralized transportation pipe network reduced from 44 times/a to 12 times/a.

关 键 词： 阴极保护 集输 管网 穿孔 计量站

领　　域： [金属学及工艺] [金属学及工艺]