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Slant-face drill bit

The most common steering mechanism involves a slant-face drill bit, the orientation of which determines the direction that the bit will advance. To move in a straight line, the rig operator both rotates and pushes the drill string. To change direction, the operator, stops rotating the drill string and pushes the string. The path will change in the direction that the bit’s slant-face is pointing. On-board controls allow the operator to monitor the orientation of the bit and the change in general direction of the bore. A walk-over tracking system is used to help guide and monitor the location of the bore.

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