Method for logging after drilling

Details Method for logging after drilling Method for logging after drilling

E - Fixed Constructions

21

B

E21B 17/02 (2006.01) E21B 47/00 (2006.01)

Patent

CA 2661342

A method for logging a downhole formation in a wellbore. The method comprises drilling a wellbore with a drill bit coupled to a disconnect device (20). The disconnect device is then actuated to detach the drill bit from a portion of a conveyance (40). A logging operation is then performed between two portions of the disconnect device. The disconnect device may then be reattached.

L'invention concerne un procédé de diagraphie d'une formation de trou de sondage dans un puits de forage. Le procédé comporte le forage d'un puits de forage au moyen d'un trépan couplé à un dispositif de déconnexion (20). Le dispositif de déconnexion est ensuite actionné pour détacher le trépan d'une partie d'un dispositif de transport (40). Une opération de diagraphie est ensuite effectuée entre deux parties du dispositif de déconnexion. Le dispositif de déconnexion peut ensuite être fixé à nouveau.

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