发明公开
EP2917475A1 SYSTEMS AND METHODS FOR HYDRAULIC BALANCING DOWNHOLE CUTTING TOOLS 审中-公开
系统和方法的孔刀具液压平衡

SYSTEMS AND METHODS FOR HYDRAULIC BALANCING DOWNHOLE CUTTING TOOLS
摘要:
Disclosed are systems and methods of balancing weight and hydraulic energy distribution between downhole cutting tools. One system includes a drill bit (102) arranged at a distal end of the bottom- hole assembly (100), a first sensor sub (112a) arranged proximate to the drill bit and configured to monitor weight-on-bit, a reamer (104) axially- offset from the drill bit on the bottom-hole assembly, a second sensor sub (112b) arranged proximate to the reamer and configured to monitor weight-on-reamer, and a communications module (114) communicably coupled to both the first and second sensor subs and configured to receive and process the weight-on- bit and the weight-on-reamer and adjust a hydraulic energy input to at least one of the drill bit and the reamer when a ratio between the weight-on-bit and the weight-on-reamer surpasses a predetermined operating threshold.
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