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TitreA telluric current simulator for pipelines
AuteurBoteler, D H; Trichtchenko, L; Blais, C; Pirjola, R
SourceProceedings of CORROSION 2013; 2013 p. 1-18
LiensOnline - En ligne
Année2013
Séries alt.Secteur des sciences de la Terre, Contribution externe 20120381
ÉditeurNACE International
RéunionCORROSION 2013; Orlando; US; mars 17-21, 2013
Documentlivre
Lang.anglais
Mediapapier; en ligne; numérique; DVD
Formatspdf
Sujetschamp tellurique; signaux telluriques; levés telluriques, sol; interpretations telluriques; pipelines; courants; modèles; établissement de modèles; géophysique
Illustrationsflow charts; plots; rose diagrams; tables; profiles
ProgrammeTargeted Hazard Assessments in Northern Canada, Géoscience pour la sécurité publique
Résumé(disponible en anglais seulement)
Telluric currents due to geomagnetic field variations have long been known to cause variations in pipeto- soil potentials (PSP) on pipelines. These are increasingly being taken into account in the design of cathodic protection systems for new pipelines. Online services are available for modelling telluric currents but cannot handle all pipeline configurations. This paper describes the development of a new
telluric simulator, based on a more versatile modeling technique that can include more details of a pipeline such as branches and other features. This can show the pipe-to-soil potentials produced by specified telluric electric fields. Descriptions are also provided for features of the telluric simulator that allow modeling of the pipeline response using electric fields calculated for past geomagnetic disturbances. These features allow pipeline designs to be checked under realistic conditions and modifications to the design to be tested.
GEOSCAN ID292198