Tensioning system for production tubing in a riser at a...

E - Fixed Constructions – 21 – B

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Details

E21B 19/09 (2006.01) E21B 19/00 (2006.01) E21B 19/08 (2006.01) E21B 33/043 (2006.01)

Patent

CA 2494283

A device for tensioning and relieving production tubing (49) extending from a subsea hydrocarbon well (107) up through a riser (63) to a floating installation (87), a continuous production tubing extension (85) passing through a telescopic unit (67) in the upper part of the riser (63), preferably extending above a production deck (89) on the floating installation (87), where the production tubing (49) is provided with a tubing tensioner unit (1) below and in the proximity of the lower end of the telescopic unit (67).

L'invention concerne un dispositif de tension et de relâchement d'une colonne (49) de production s'étendant d'un puits d'hydrocarbure sous-marin (107) jusqu'à une installation flottante (87) par une colonne montante (63), une extension continue (85) de la colonne de production passant dans une unité télescopique (67) de la partie supérieure de la colonne montante (63), s'étendant de préférence au-dessus d'un pont (89) de production situé sur l'installation flottante (87), la colonne (49) de production étant équipée d'une unité (1) de tension de colonne en-dessous et à proximité de l'extrémité inférieure de l'unité télescopique (67).

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