Method for releasing cables from an attached well tool and...

Details Method for releasing cables from an attached well tool and... Method for releasing cables from an attached well tool and...

E - Fixed Constructions

21

B

E21B 29/04 (2006.01)

Patent

CA 2502006

In a method for releasing cables (2) from an attached well tool, where the cutting and the time for cutting can be decided from the surface above the well, and where a cable cutter (6) is arranged between the main part of a cable and a well tool, said cable cutter being controlled by a timer, it is suggested that at least three parameters are used for controlling the cutter, e.g. a pulling force exerted by the cable on the well tool, the pressure in the well location, and time, where the timer (1) is working electronically.

Dans un procédé de dégagement de câbles (2) d'un outil de forage attaché, la désolidarisation et le temps de désolidarisation peuvent être décidés depuis la surface du puits. Un dispositif de désolidarisation (6) des câbles, disposé entre la partie principale d'un câble et un outil de forage, est commandé par une minuterie. Il est conseillé d'utiliser au moins trois paramètres pour commander le dispositif de désolidarisation tels qu'une force de tirage exercée par le câble sur l'outil de forage, la pression dans le puits et le temps. Il est à noter que la minuterie (1) est électronique.

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