SteadyTorque mitigates the effects of stick-slip by converting excess torque into axial movement, reducing weight-on-bit as needed. The torque conversion is done through a torsional absorber component utilizing a helical spline. As torque increases, the helical spline causes the SteadyTorque™ to decrease in length, reducing weight-on-bit to decrease bit cutting depth. As torque decreases, the SteadyTorque™ extends in length to maintain weight-on-bit. The axial extension and compression are controlled by a stack of high-strength disc springs. By maintaining a constant weight-on-bit, SteadyTorque™ decreases stick-slip, thereby increasing the rate of penetration by keeping the bit rotating for a higher percentage of time. The torsional and axial vibrations absorbed by SteadyTorque™ are beneficial to the life of the bit and other downhole components, making it an ideal choice for rotary steerable BHAs, drilling through formation transitions, and high stick-slip and HFTO mitigation.
