The volumetric downhole power drill is a power drill with oil-based mud, floating mud and clay mud as the power fluid, which converts liquid pressure energy into mechanical energy, and has sealing conditions and disappearing conditions, also known as screw drilling tools. When the high-pressure mud generated by the mud pump flows through the bypass valve into the motor, the rotor rotates around the axis of the stator driven by the mud pressure, and the torque and the rotational speed generated by the motor are transmitted to the drill bit through the cardan shaft and the transmission shaft, thereby achieving drilling operation. . The drilling tool has large torque, high efficiency, wide flow range, stable operation, strong overload capability, and long service life of various types of drills. It is widely used in drilling and various workover operations in vertical, directional, side and horizontal wells, and can meet the requirements of composite drilling. It is safe to use, sufficient strength and special design of multiple anti-drop devices to ensure Drilling safety.
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