Dual tractor drilling system

Details Dual tractor drilling system Dual tractor drilling system

E - Fixed Constructions

21

B

E21B 4/18 (2006.01)

Patent

CA 2580701

The invention provides a drilling system for use in a borehole through an underground formation, comprising: a drilling assembly including a drill bit for drilling through the formation and a drilling drive; conveyance means including a conveyance drive connected to the drilling assembly and operable to move the drilling assembly through the borehole, wherein the conveyance drive is operable to move the drilling assembly along the borehole into a drilling position and the drilling drive is operable to urge the drill bit into contact with the formation when drilling takes place in the drilling position.

La présente invention a trait à un système de forage destiné à être utilisé dans un trou de forage à travers une formation souterraine, comportant: un ensemble de forage comprenant un trépan pour le forage à travers la formation et un entraînement de forage; un moyen de transport comprenant un entraînement de transport relié à l'ensemble de forage et opérable pour le déplacement de l'ensemble de forage à travers le trou de forage, ledit entraînement de transport étant opérable pour le déplacement de l'ensemble de forage le long du trou de forage vers une position de forage et l'entraînement de forage étant opérable pour solliciter le trépan en contact avec la formation lors du forage dans la position de forage.

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