System and method for one-trip hole enlargement operations

Details System and method for one-trip hole enlargement operations System and method for one-trip hole enlargement operations

E - Fixed Constructions

21

B

E21B 7/28 (2006.01)

Patent

CA 2719752

A drilling assembly for simultaneous hole enlargement operations comprises a drill bit, an adjustable diameter reamer, and a hole opener. The reamer is coupled with, and positioned uphole from the drill bit. The reamer is adjustable between a first diameter and a second diameter that is larger than the first diameter. The hole opener is coupled with, and positioned uphole from the reamer.

L'invention concerne un ensemble de forage pour des opérations simultanées d'agrandissement de trou, comportant un trépan, un aléseur à diamètre ajustable, et un élargisseur. L'aléseur est accouplé au trépan, et positionné à la verticale dans le trou depuis le trépan. L'aléseur est ajustable entre un premier diamètre et un deuxième diamètre qui est supérieur au premier diamètre. L'élargisseur est accouplé à l'aléseur, et positionné à la verticale dans le trou depuis l'aléseur.

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