Cup seal expansion tool

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 33/124 (2006.01) B21D 39/20 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2495916

In one variation, a tool is disclosed that can run cladding (44) into casing (50) where the cladding interior is closed off by opposed cup seals (36, 38) and access to the volume between the cup seals exists through the tool body (16). "Cladding" comprises sleeves, scrolls, casing, tubing and liner strings. Pressure is applied to the interior of the cladding to expand it into gripping and sealed contact with the casing. An exterior gripping surface can be provided on the cladding to enhance grip upon expansion. The tool can be repositioned to expand lengths of cladding including tubing or casing.

Dans un mode de réalisation de cette invention, un outil peut amener une gaine (44) dans une enveloppe (50), l'intérieur de la gaine étant fermée par des joints calottes opposés (36, 38) et l'accès au volume entre lesdits joints calottes existant par le biais du corps de l'outil (16). Le gainage comprend des manchons, des spirales, une enveloppe, un tubage et des trains de tiges. Une pression est appliquée à l'intérieur du gainage pour l'étendre en contact hermétique et préhensile avec l'enveloppe. Une surface de préhension externe peut se situer sur le gainage, afin d'améliorer la préhension suite à une extension. Ledit outil peut être redisposé de manière à étendre des longueurs du gainage, y compris le tubage ou l'enveloppe.

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