Method and apparatus for casing expansion

Details Method and apparatus for casing expansion Method and apparatus for casing expansion

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 17/08 (2006.01) E21B 19/16 (2006.01) E21B 23/00 (2006.01) E21B 29/00 (2006.01)

Patent

CA 2419806

A mono-diameter wellbore (10) casing. The mono-diameter wellbore (10) casing is formed by plastically deforming and radially expanding a first tubular member (155) within a wellbore (10). A second tubular member is then plastically deformed and radially expanded in overlapping relation to the first tubular member (155). The second tubular member and the overlapping portion of the first tubular member (155) are then radially expanded again.

La présente invention concerne un tubage de revêtement de puits (10) de forage à un seul diamètre. On forme ce tubage de puits (10) par la déformation plastique et par la dilatation radiale d'un premier élément (155) tubulaire à l'intérieur de ce puits (10). Puis un second élément tubulaire vient ensuite chevaucher le premier élément (155) tubulaire par déformation plastique et par dilatation radiale. Ce second élément tubulaire et la partie chevauchante du premier élément (155) tubulaire sont ensuite à nouveau dilatés.

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