METHOD FOR PIPELINE INSPECTION

Method for pipeline inspection Abstract A pipeline inspection apparatus includes sensors for detecting the presence of cracks 5 and/or corrosion in wall material of a pipeline. The apparatus is configured with multiple modes of inspection. A first mode of inspection is used to provide data for unden...

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Bibliographische Detailangaben
Hauptverfasser:	HUGGER, ACHIM, SUTHERLAND, JEFFREY EARLE, BATZINGER, THOMAS JAMES, BAUERNSCHMITT, RUEDIGER, PAIGE, DAVID MARTIN
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MEASURING MECHANICAL ENGINEERING PHYSICS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TESTING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	Method for pipeline inspection Abstract A pipeline inspection apparatus includes sensors for detecting the presence of cracks 5 and/or corrosion in wall material of a pipeline. The apparatus is configured with multiple modes of inspection. A first mode of inspection is used to provide data for undented regions of a pipeline and a second mode of inspection is used to provide data for dented regions of the pipeline. Under normal operating conditions the first mode of inspection is active. However, the second mode of inspection is operated when the 10 apparatus is passing through a dented region. The second mode may be triggered and deactivated automatically depending on the position of the apparatus relative to a known dented region in the pipeline. The second inspection mode is selected to be less sensitive to the geometric effects of dents than the first mode of inspection, and the two data sets can then be combined to provide a direct assessment of the presence 15 of cracks and/or corrosion in wall material along said length of pipeline, including along said dented region. 4- 1