Device for measuring drilling mast swivel movement

Details Device for measuring drilling mast swivel movement Device for measuring drilling mast swivel movement

E - Fixed Constructions

21

B

E21B 47/04 (2006.01) E21B 3/02 (2006.01) E21B 45/00 (2006.01)

Patent

CA 2081012

Dispositif de mesure du déplacement d'un train de tiges de forage, dont l'extrémité est soutenue lors du forage par un ensemble d'accrochage (12), déplacable le long d'au moins un rail de guidage (16), le dispositif de mesure comprenant un ensemble capteur (38) monté sur l'ensemble d'accrochage et comportant un galet (42) adapté à rouler sur le rail lors du déplacement de l'ensemble d'accrochage.

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