
ROSEN
Large Stand-Off Magnetometry (LSM) Inspection
Above-Ground Inspection of Unpiggable Pipelines
Large Stand-Off Magnetometry in a non-intrusive, above-ground inspection method based on the science of stress magnetization. LSM can locate buried pipelines and detect anomalies in the pipeline's magnetic field.
During an LSM inspection, a technician or drone carries the scanner directly over the center of the pipelines as the scanner passively collects magnetic data of the pipeline. There is no need to introduce energy into the pipeline, turn of CP systems or change the operating parameters of the pipeline during the inspection.
https://www.rosen-group.com/en/expertise/product-and-service-finder/above-ground-inspection-and-integrity-services-for-unpiggable-pipelines
