E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 44/00 (2006.01)
Patent
CA 2599429
A method for controlling a drilling apparatus comprising the steps of applying a rotation force to a drilling part of the drilling apparatus, applying a feed force to the drilling part with the feed force comprising a predetermined modulating frequency signal and predetermined feed force, wherein optimum predetermined feed force is determined periodically from sensed data relating to at least one of the rotation force and feed force to optimise the penetration rate of the drilling apparatus.
L'invention concerne un procédé permettant de commander un dispositif de forage, consistant à appliquer une force de rotation à un élément de forage du dispositif de forage et à appliquer une force d'avance à l'élément de forage, la force d'avance comprenant un signal à modulation de fréquence prédéterminée et une force d'avance prédéterminée, la force d'avance optimale étant déterminée périodiquement à partir de données captées relatives à la force de rotation et/ou à la force d'avance pour optimiser le taux de pénétration du dispositif de forage.
Commonwealth Scientific And Industrial Research Organisation
Kirby Eades Gale Baker
LandOfFree
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