E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/00 (2006.01) E21B 15/00 (2006.01)
Patent
CA 2578027
The present invention provides an automatic system for engaging the hydromatic brake on a drilling rig or a service rig. This system monitors both the hook load and traveling block velocity, and uses an electrical solenoid to activates the hydromatic when either the hook load or rotating drum velocity exceeds a maximum value, requiring hydromatic brake engagement.
L'invention concerne un système automatique d'enclenchement du frein hydraulique sur un engin de forage ou d'entretien. Ce système contrôle à la fois la charge du crochet et la vitesse de la moufle mobile, et utilise un solénoïde électrique pour activer le frein hydraulique lorsque, soit la charge au crochet, soit la vitesse du tambour rotatif dépasse une valeur maximum, et que l'enclenchement du frein hydraulique est nécessaire.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Key Energy Services Inc.
LandOfFree
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