Improved well intervention system

Details Improved well intervention system Improved well intervention system

E - Fixed Constructions

21

B

E21B 17/01 (2006.01) E21B 19/00 (2006.01)

Patent

CA 2694345

A well intervention system is described which has a riser access drive adapted to be located below a vessel, or a rig, work floor. The riser is tensioned and extends from a subsea wellhead to the access device which, in use, is attached to the riser at the location below the work floor. Embodiments of the invention are described.

L'invention concerne un système d'intervention sur un puits. Le système est muni d'un dispositif d'accès à la colonne montante pouvant être placé sous le plancher de travail d'un navire ou d'un appareil de forage. La colonne montante est tendue et s'étend d'une tête de puits sous-marine au dispositif d'accès qui, en utilisation, est fixée à la colonne montante sous le plancher de travail. Des modes de réalisation de la présente invention sont décrits.

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