Mud motors are widely used in oil and coal directional drilling, horizontal wells, cluster wells, vertical wells and other drilling, suitable for drilling, whipstocking, twisted position, coring, reaming, sidetracking and workover operations.
Mud motor is a kind of mud-powered downhole drill motor. Mud pump mud flow enter into the motor through a bypass valve, certain pressure difference between the inlet and outlet of the motor, promote motor rotor rotation, then make the torque and speed passed to the drill bit by cardan shaft and drive shaft. Screw drill performance depends on the performance parameters of the screw motor. Rotor of screw drill can drive drill bit do directional drilling operations, continuously improved efficiency, site work order is more stable, can complete the processing requirements of high precision work. Screw drill rotor can improve torque and power, increased footage rate, while reducing drill pipe and casing wear and tear, can accurately orient whipstocking, correction, can be used for vertical wells, horizontal wells and cluster wells and workover operations.
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