LZ150 Down-hole Motor

Working principle of LZ150 Down-hole Motor

With drilling fluid as the power, the mud pumped out by the mud pump flows through the bypass valve into the motor, forming a certain pressure difference between the inlet and outlet of the motor, pushing the rotor to rotate around the axis of the stator, and transmitting the speed and torque to the drill bit through the universal shaft and the transmission shaft, thereby realizing the drilling operation.

Features of LZ150 Down-hole Motor

1. High efficiency and energy saving: It can effectively convert liquid pressure energy into mechanical energy to provide power for drilling. Compared with other drilling tools, it can improve drilling efficiency and reduce energy consumption.

2. Good directional performance: With the help of deflection tools such as bent joints, bent outer pipes and eccentric blocks, the drilling direction can be accurately controlled to meet the needs of directional drilling and horizontal drilling.

3. Wide range of applications: It can work effectively on various muds, including oil-based mud, emulsified mud and clay mud, and even clean water can be used as a power medium, and it can adapt to different formation conditions.

4. Adjustable torque and speed: By controlling the mud flow and pressure, the torque and speed of the screw drill can be easily adjusted to adapt to different drilling conditions.

Precautions for use 

1.Drilling fluid requirements: The sand content in the mud must be controlled below 1% to reduce the wear on the bearings and motor stators. At the same time, each type of drill has its own input flow range. The appropriate flow should be selected within this range to ensure the efficient operation of the drill.

2. Downhole operation: When the drill is lowered into the well, the lowering speed must be strictly controlled to prevent the motor from reversing when it is too fast, causing the internal connection thread to be disengaged, and to avoid damaging the drill when passing through sand bridges, casing shoes, etc.; when entering deep well sections, high-temperature well sections or through quicksand layers, the mud should be circulated regularly to cool the drill to protect the stator rubber and prevent sand plugging.

3. Drilling process: Before drilling, the bottom of the well should be thoroughly cleaned and the circulating pump pressure should be measured. When starting to drill, the drilling pressure should be increased slowly and the drill should be fed evenly to ensure the smooth curve and directional accuracy of the well section, while avoiding mud packing on the drill bit.

Technical parameters of LZ150 Down-hole Motor