LZ210 Down-hole Motor is a commonly used downhole power tool in the fields of oil and gas exploration and development.
Motor section: It consists of a rotor and a stator. The stator is a rubber sleeve with an inner helical surface, and the rotor is a screw that matches the inner helical surface of the stator. When high-pressure drilling fluid enters the power section, it flows in the sealed chamber formed between the rotor and stator, pushing the rotor to rotate and converting hydraulic energy into mechanical energy.
Universal shaft: located between the motor section and the transmission shaft, its function is to convert the eccentric rotation of the rotor into concentric rotation, ensuring stable transmission of power to the transmission shaft and effectively avoiding vibration and wear caused by rotational eccentricity.
Drive shaft: further transmit the power transmitted by the universal shaft to the drill bit, drive the drill bit to rotate, and achieve rock crushing and drilling. At the same time, the transmission shaft also needs to withstand various forces during the drilling process, such as torque, axial force, etc., so it needs to have high strength and wear resistance.
High pressure drilling fluid is pumped into the screw drilling tool through a mud pump on the ground, and the drilling fluid enters between the rotor and stator of the power section through a bypass valve. Due to the spiral structure of the stator and rotor, the drilling fluid drives the rotor to rotate during the flow process. The rotational motion of the rotor is transmitted to the drill bit through the universal shaft and transmission shaft, thereby driving the drill bit to rotate and achieve drilling in the formation.
1,Efficient and energy-saving: It can efficiently convert the hydraulic energy of high-pressure drilling fluid into mechanical energy, providing powerful power for the drill bit. Compared with other drilling methods, it can effectively improve drilling efficiency, shorten drilling cycles, and reduce energy consumption.
2. Strong adaptability: It can adapt to different geological conditions, such as sandstone, shale, limestone and other rock formations. By adjusting the structure and parameters of the drilling tool, it can meet the drilling needs of different formations.
3. Reduce drill pipe wear: Due to the torque generated by the screw drilling tool directly acting on the drill bit, the wear of the drill pipe during rotation is reduced, the service life of the drill pipe is extended, and the drilling cost is reduced.
Model | 3LZ210×7.0Ⅵ | 5LZ210×7.0Ⅴ | 7LZ210×7.0Ⅳ | |
Bit Size | in | 12 1/4– 15 1/2 | 12 1/4– 15 1/2 | 12 1/4– 15 1/2 |
OD | mm | 212 | 212 | 212 |
ABH | ° | 0-3 | 0-3 | 0-3 |
Lobe | 3:4 | 5:6 | 7:8 | |
Stages | 6 | 5 | 4 | |
Pressure | MPa | 4.8 | 4 | 3.2 |
Flow Rate | L/s | 32-38-42 | 32-42-50 | 35-45-55 |
Flow Per Revolution | L/r | 10.7 | 18.4 | 22.8 |
Bit Speed | rpm | 180-213-235 | 105-137-163 | 90-118-145 |
Torque | N·m | 7600 | 11800 | 10000 |
Max.torque | N·m | 13300 | 21240 | 18000 |
Output Power | kw | 138-181 | 128-200 | 120-200 |
Weight on Bit | KN | 180 | 180 | 180 |
Max. Weight on Bit | KN | 280 | 280 | 280 |
Connection | Top Female Thread REG | 6 5/8 | 6 5/8 | 6 5/8 |
Bottom Female Thread REG | 6 5/8 | 6 5/8 | 6 5/8 | |
Length | mm | 9025 | 9025 | 9025 |
Weight | kg | 1538 | 1609 | 1890 |
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