New higher strength pipeline steels (X100 and X120) exhibit lower tolerance for hydrogen (diffusible and formed hydrides) before significant degradation or failure occurs. It is essential to have advanced sensors to monitor the hydrogen content and accumulation in the pipeline steel and steel weldments. Advanced low frequency induced current measurements have been utilized for in-situ monitoring of hydrogen content in pipelines. Low frequency induced current laboratory and in-field results are presented.
Proceedings Title: Proceedings of the 7th International Pipeline Conference
Conference Dates: June 29-October 3, 2008
Conference Location: Alberta, CA
Conference Title: International Pipeline Conference 2008
Pub Type: Conferences
hydrogen, low frequency impedance, pipeline