Electromagnetic Measurements Used in NDTfor Pipeline Coating in Mexico

摘要

SEMPI technology was developed on the basis of transmission line (LT) theory, which allows for the modeling of different types of pipe coating damages, as well as different types of soil surrounding pipeline. The main result of SEMPI is the determination of the coating resistance (Tc) values along a pipeline, which indicate the quality of the pipe coating. Successful results from the application of SEMPI technology in pipelines locate in the southeast part of Mexico, shows the effectiveness of the technology to determine the coating integrity of pipelines buried in very corrosive soil.