Drilling device

Details Drilling device Drilling device

E - Fixed Constructions

21

B

E21B 44/00 (2006.01) E21B 15/00 (2006.01) E21B 19/00 (2006.01)

Patent

CA 2215384

Drilling device comprising a frame (1) with a feed device (2) which carries a drilling device (3) movable to-and-fro for rotation of a drill string (4). The drilling device comprises means (6) for sensing an end (7) of a drill string element (8) in the drill string (4) and means (9) for registering the position of the end (7) along the feed device (2) and for registering the displacement of the drilling device (3) along the feed device (2).

L'invention porte sur un dispositif de forage comprenant un châssis (1) pourvu d'un dispositif d'avance (2) porteur d'un matériel de forage (3) mobile en va-et-vient pour la mise en rotation d'un train de forage (4). Le dispositif de forage comporte un dispositif (6) servant à la détection d'une extrémité (7) d'un élément (8) de train de forage dans ce train de forage (4) et un dispositif destiné à enregistrer l'emplacement de cette extrémité (7) le long du dispositif d'avance (2) ainsi que le déplacement du dispositif de forage le long de ce dispositif d'avance (2).

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