Patent ID: 8556002
Filing Date: 2013-10-15
Classification: E21B

Abstract:
1. A steering component adapted for connection to a drill string which is rotated during use, the drill string carrying a drill bit and a motor for rotating the drill bit relative to the drill string, the rate of rotation of the drill bit in use being the sum of the rate of rotation of the drill string and the relative rate of rotation due to the motor, the steering component comprising: a rotatable driveshaft adapted for connection between the drill bit and the motor; a drive mechanism; and an offsetting component; the drive mechanism providing a rotatable connection between the drill string and the offsetting component, the rotatable connection being adapted to enable the offsetting component to maintain a substantially constant angular orientation as the drill string is rotated during use, the drive mechanism utilizing relative rotation between the driveshaft and the drill string to drive the offsetting component to rotate in an opposed direction to the driveshaft, the drive mechanism being adapted to drive the offsetting component to rotate in the opposed direction to the driveshaft during drilling.