Specialized bit for challenging drilling environments
Abstract:
The present disclosure provides a drill bit having cutters of different geometries, such as the combination of round cutters and scribe cutters. The drill bit includes at least one radial location at which both a round cutter and a scribe cutter are disposed. Thus, the drill bit leverages the high cutting efficiency of the scribe cutter as well as the high impact resistance of the round cutter. Additionally, the round cutter and the scribe cutter have the same maximum distance from the drill bit. Thus, the round cutter and the scribe cutter which share the same radial location contact the rock formation at substantially the same time when used in a drilling operation.
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