电压降法在水平定向钻穿越管道外涂层评价中的应用研究

Research on the Application of Voltage Drop Method in the Evaluation of Pipeline External Coating By Horizontal Directional Drilling

介绍了电流-电位法、电流密度法在水平定向钻穿越管道外涂层评价中的应用,联合电压降法计算管内电流值,并结合实际案例对穿越管道两端连头之后外涂层性能进行评价。

The application of the current-potential method and the current density method in the evaluation of the outer coating of the horizontal directional drilling through the pipeline is introduced.The voltage drop method is combined to calculate the current value in the pipe,and the performance of the outer coating after the two ends of the pipe is connected is evaluated based on the actual case.