Home > Products > Industrial Supplies > Mining Machine

Introduction of Downhole Motor/Mud motor

Down-hole motor/Mud motor is a positive-displacement motor(PDM), the high drilling fluid enters into the high fluid power converted into mechanical energy, and the rotor drives the principal shaft and bit rotating. We provide the Down-hole motor/Mud motor with diameter from 45mm to 286mm, vertical, single-bend, double-bend and adjustable motors; the hear-resistance temperature ranges are ≤120℃,120-150℃; oil-based mud resistance and saturated saltwater mud resistance motors.And we also design and manufacture according to customers' special requirements:

1. Bent Down-hole motor: The bent angle on the universal axis can fit curvature of kicking off, Single-bent and double-bent are available.
2. Bent angle adjustable down-hole motor: The bent angle of the down-hole motor can be adjusted on well surface,which enhances the extension of the kicking off.
3. Extended down-hole motor: On the basis of the common downhole
motor, the torque can be increased with the step increasing for the motor.the bit drilling quickly.
4. Hollow rotor down-hole motor The adoption hollow rotor for different sizes of hard alloy jet nozzle the inputting flux and horsepower of drill bit.
5. High kick-off down-hole motor: The curvature of kicking-off can achieve l°/m with the particular design.the shortness length of the whole and adjacent adjacent bend to the bit.
6. Saturated saltwater mud resistant down-hole motor The special coating layer of rotor has stronger ability of corrosion and wear resistance. enabilng the down-hole motor to work for a long time in saturated saltwater mud.
7. High temperature down-hole motor The resistant temperature of motor can achieve over 150°C by the using of excellent resistant temperature rubber in the stator. With the ability of the resistant temperature rubber in the stator, the requirement of the deep-well.up
deep-well and high temperature grads areas drilling can be satisfied.
8. Sealed transmission shaft down-hole motor:Converting the mud sealed to the oil sealed of transmission shaft,this improves the condition of thrust axletree and radial axletree, make the whole down-hole motor life long.

Detail Features & Advantages
1. Adjustable Bend Housing
In drilling the non-conventional wells such as directional wells, horizontal wells, and highly-deviated wells, downhole motor with adjustable bend housing which uses the new coupling design can be adjusted from 0°to 4°at 19 different angles. It overcomes the shortcomings of flat universal shaft such as the exposed surfaces are susceptible to erosion and short operational life.
2. New Drive Seal Universal Shaft
The new drive seal universal shaft effectively increases the contact area of transmission components and reduces their contact stress. It helps to increase carrying capacity and service life of the universal shaft.
3. Uniform Wall Thickness Downhole motor
Through changing the shape of stator housing in a reasonable way, it makes stator's rubber thin and uniform which overcomes the shortcomings of conventional stator technology. The downhole motor with even wall stator has advantages such as high cooling efficiency, rubber thermal expansion, good even sealing effect , broader adaptation range, more optimized structure and lighter overall mass, all of which can improve the working environment and life of downhole motor.
4. High-temperature Motor
The resistant temperature of motor can achieve over 150'C by the using of excellent resistant temperature rubber in the stator. It can meet the requirement of the High temperature well, ultra deep-well.
5. Rotor Surface
The special chrome method makes the layer thickness of the valley and peak same.
The tungsten carbide coating layer of rotor has stronger ability of corrosion and wear resistance, enabling the down-hole motor to work normally in the saturated saltwater mud.
6. Changeable Stabilizer
To meet the requirements of different drilling conditions, we equipped the housing of the drive shaft assembly with different types of stabilizers: Fixed and Changeable ones, etc. We can provide different kinds of stabilizers for customers to choose.