Patent ID: 8381839

Claim:
A bottom-hole assembly adapted to be connected to a drill string for drilling linear and nonlinear subterranean bore segments comprising: a torque generator having a drive shaft adapted to be connected to the drill string; a torque generator bearing section that surrounds the drive shaft and is connected to a top of the bottom-hole assembly to permit the bottom-hole assembly to rotate independently of the drive shaft and the drill string; a housing that surrounds a stator casing of the torque generator and defines a bypass through which drilling mud flows to a mud motor of the bottom-hole assembly; whereby rotation of the drill string at a static drive speed induces the torque generator to generate a torque that counterbalances a reactive torque generated by rotation of a drill bit of the bottom-hole assembly and the bottom-hole assembly is rotationally stabilized to drill the nonlinear bore segment, whereas rotation of the drill string at a speed other than the static drive speed causes rotation the bottom-hole assembly to drill the linear bore segment.