Patent ID: 7481282

Claim:
A bottom hole assembly (BHA) for use in drilling a wellbore, the BHA comprising: a first mud motor having a stator and a rotor; a second mud motor having a bent stator or a stator rotationally coupled to a bent sub and a rotor; a drill bit rotationally coupled to the second rotor; and a clutch operable to: rotationally couple the second stator to the first stator when the clutch is in a disengaged position, rotationally couple the first rotor to the second stator when the clutch is in an engaged position, and actuate from a first one of the positions to a second one of the positions as a result of fluid being injected through the clutch at a first flow rate which is greater than or equal to a predetermined threshold flow rate (PTFR), and actuate from the second one of the positions to the first one of the positions at a second flow rate which is less than the PTFR, wherein the second flow rate is sufficient to operate the second motor.