油田埋地管道防腐层检测方法

Anticorrosive Layer Detection Methods for Oilfield Buried Pipelines

在分析了油田埋地管道常用的不开挖防腐层检测法(包括管中电流—电压法、交流电流衰减法、人体电容法、变频—选频法、直流电压梯度法、密间隔电位法等)特点的基础上,提出了分别适用于长、中、短距离输油管道的不开挖防腐层检测方法。

There are several methods to detect buried pipeline anticorrosive layer without excavation,including pipe current-voltage method,AC attenuation method,Pearson method,frequency conversion and selection method,DC voltage gradient method,close interval potential survey method,etc.Based on the analysis of above-mentioned methods,this paper indicates the corresponding methods respectively suitable for long,medium and short distance pipelines.