Patent ID: 6243657
Filing Date: 2001-06-05
Classification: G01C,G01N

Abstract:
A system for inspecting a pipeline and for mapping a defect within the pipeline, the system comprising:a pig insertable within the pipeline, the pig having a kinematic property sensor generating kinematic property sensor data and a defect/anomaly inspection unit generating defect/anomaly inspection data, the kinematic property sensor having unknown initial conditions;a maglogger at a known location external to and in close proximity with the pipeline, the maglogger containing a device for detecting the passage of the pig along the pipeline, the maglogger generating maglogger data; anda computer system configured to receive maglogger data and kinematic property sensor data, and to combine maglogger data with kinematic property sensor data to derive the location of the detected defects and to determine initial conditions of the kinematic property sensor.