Drilling Operators are continually striving to reduce the drilling cost of every well. Reducing the drilling cost can come from improved performance of the downhole motor. Power sections with even wall rubber technology have provided the latest step change in performance of these downhole motors. These power sections deliver higher torques than conventional rubber lined stators; without a loss of performance in other areas. However, delivering the higher torques from the power section to the drill bit requires new torque transmission technology in the lower end of the motor. The following paper will discuss a new technology utilized to transmit these higher torques. It also includes the developmental history of downhole motor power sections.
NOV Wellbore Technologies Power Section Spec Sheet.