LONGITUDINAL MAGNETIZATION IN-LINE INSPECTION (MFL)
Detection of general corrosion, pittings, midwall anomalies, pinholes and other anomalies associated with loss of pipeline wall metal is the basis of pipeline integrity maintenance programs.
High resolution magnetic inspection tools developed by GPS can detect and size such anomalies as: metal loss, transverse cracks and circumferential welds anomalies, have one of the best specifications in determining the angular position of features and traveled distance, increased probability of differentiation between internal and external defects, and low noise level, which allows to detect background corrosion more accurately.