Tie back for use with expandable tubulars

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/10 (2006.01) E21B 23/01 (2006.01)

Patent

CA 2445782

The present invention provides apparatus and methods for completing a wellbore using expandable tubulars. In one aspect, the invention includes a tubular member (200) with an expandable portion (205) at a lower end constructed and arranged to be expanded into contact with a previously expanded liner (150). At an upper end of the tubular is a polish bore receptacle (210) permitting the tubular to be tied back to the surface of the well with production tubing (250). In another aspect, the invention provides a method of completing a well comprising expanding a liner top into a cased wellbore to hang the liner and, thereafter running a tubular member (200) into the wellbore.

L'invention concerne un appareil et des procédés permettant la complétion d'un puits de forage à l'aide d'éléments tubulaires extensibles. Dans un mode de réalisation, l'invention concerne un élément tubulaire (200) avec une partie extensible (205) au niveau d'une extrémité inférieure conçue pour s'étendre en contact avec une colonne perdue préalablement étendue (150). Au niveau d'une extrémité supérieure de l'élément tubulaire se situe un réceptacle à alésage poli (210) permettant que l'élément tubulaire soit ancré dans la surface du puits avec le tube de production (250). Dans un autre mode de réalisation, l'invention concerne un procédé de complétion d'un puits de forage consistant à étendre le sommet d'une colonne perdue dans un puits de forage tubé afin de suspendre la colonne perdue, puis à enfoncer un élément tubulaire (200) dans le puits de forage.

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