Resettable downhole packer

Details Resettable downhole packer Resettable downhole packer

E - Fixed Constructions

21

B

E21B 33/12 (2006.01) E21B 33/1295 (2006.01)

Patent

CA 2412412

A downhole packer (10) is provided for sealing an annulus between first tubing located within larger diameter second tubing. The packer comprises a mandrel (14) for coupling to the first tubing, the mandrel (14) having a wall defining a main through bore (16) and a plurality of smaller diameter through bores (16) for receiving control lines. The packer (10) is resettable, comprising a lost motion arrangement.

Cette invention porte sur une garniture d'étanchéité (10) pour fond de puits destinée à isoler hermétiquement l'espace annulaire situé entre une premier tubage se trouvant à l'intérieur d'un deuxième tubage au diamètre plus grand. La garniture d'étanchéité comprend un mandrin (14) à coupler au premier tubage, ledit mandrin (14) présentant une paroi définissant un alésage de passage (16) principal et une pluralité d'alésages (16) de passage au diamètre plus petit pour recevoir les lignes de commande. La garniture d'étanchéité (10) est réenchlenchable et comprend un aménagement à mouvement perdu.

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