Balanced torque drilling system

Details Balanced torque drilling system Balanced torque drilling system

E - Fixed Constructions

21

B

E21B 7/00 (2006.01) E21B 4/00 (2006.01) E21B 7/30 (2006.01)

Patent

CA 2351248

The invention combines a mud motor, a drill bit, a transmission, an underreamer and a torque tube to simultaneously drill a well by rotating the drill bit in one direction and the underreamer in the opposite direction to balance the torque supplied to the bit and the underreamer. 10

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