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Stator of Downhole Motors-Mud Motors is made of Special steel pipe, The rated working pressure drop of each stage is 0.8MPa, and the maximum pressure drop is 1.3 times of the rated working pressure. For example, the rated pressure drop of the fourth stage motor should be 3.2MPa, and the maximum pressure drop is 5.2MPa.

In order to increase the hydraulic power of drill bits and the speed of mud return, the rotor is made into a hollow rotor with nozzle. The total flow of the Downhole Motors-Mud Motors shall be equal to the sum of the flow through the motor seal chamber and the flow through the rotor nozzle. Each specification of Downhole Motors-Mud Motors has its recommended maximum and minimum flow values. If the flow is too large, the rotor will over speed, the stator and rotor will appear early damage, if the flow is too small, the Downhole Motors-Mud Motors will stop running. Therefore, when choosing the rotor nozzle size, we should ensure that the flow rate of the Downhole Motors-Mud Motors sealing cavity is always maintained or higher than the minimum recommended flow value, so as to make the motor run normally.

Navi Downhole Motors-Mud Motors is a new downhole power drilling tool designed and manufactured by our company for horizontal drilling, which usually refers to the drilling tool with curved casing and stabilizer. Work with PDC bit and cone bit to form different drilling tool assemblies, which are used to navi drilling series, complete deflection making and local drilling tool assembly to achieve drilling operations in stable inclined section (with rotary table rotating at low speed) and horizontal well section.
The drive shaft housing is equipped with stabilizers of different diameters and shapes, which can be selected and used by users according to the needs of drilling technology.
The bending Universal Coupling Assembly shell has two forms: single bending and double bending, and there are different angles of bending for users to choose. The double bending Universal Coupling Assembly shell can also choose the same direction double bending and reverse double bending.
In order to solve the difficult problem of carrying cuttings back in horizontal drilling, the motor rotor is designed with a nozzle installed at the inlet of the central diversion hole, so as to increase the input flow and enable high-pressure jet drilling. When the displacement is small, the rotor middle hole can be blocked.
Various specifications of the ratio of rotor head number to stator head number of 1:2, 3:4, 6:7, 9:10, and centralizers of different specifications can be manufactured according to user requirements, and the drill bit water hole pressure drop of 14MPa can be provided for users according to use requirements.