Composite riser with integrity monitoring apparatus and method

E - Fixed Constructions – 21 – B

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E21B 17/01 (2006.01)

Patent

CA 2541542

An integrity monitoring system for monitoring degradation in a composite riser string. The system includes composite riser structures incorporating magnetic strain and vibration sensors to measure changes in the stiffness strain on a first orientation and on a second orientation. The system can also include monitoring modules attached to each individual riser and devices to transfer the data from the monitoring module to the surface controller. Additionally, the monitor system can provide for an alarm when predetermined warring limits are exceeded.

L'invention concerne un système de surveillance d'intégrité permettant de surveiller la dégradation d'une colonne montante composite. Le système comprend des structures de colonnes montantes composites incorporant des capteurs de déformation et de vibration destinés à mesurer les changements de déformation dans une première orientation et une seconde orientation. Le système peut également comprendre des modules de surveillance connectés à chaque colonne montante individuelle et des dispositifs de transfert des données du module de surveillance au contrôleur de surface. De plus, le système de surveillance peut servir d'alarme lorsque des limites d'avertissement prédéterminées sont dépassées.

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