Downhole motor is a type of positive- displacement downhole motor(PDM). After high pressure drilling fluid enters into downhole motor from drill stem, fluid pressure forces rotor to rotate that transfers torque to bit to achieve drilling purpose.
Various downhole motor assemblies for well size 1 7/8"~26" with 24 main dimension specifications (which are identified by outer diameter of stator) : 1-11/16", 2-1/8", 2-3/8", 2-7/8", 3-1/8", 3-1/2", 3-3/4", 4-1/8", 4-3/4", 5", 5 1/2", 6-1/4", 6-1/2", 6-3/4", 7",7-1/4", 7-3/4", 8", 8-1/4", 8-1/2", 9",9-5/8", 11-1/4".
2.Structure form includes straight, single bend, double bend, angle adjustable 0~3° and so on . Heat-resistant temperature range consist of 250°F (120ºC) or less than 250ºF (120ºC), and between 250 ºF(120ºC) to 355ºF (180ºC). We can also provide all specifications including oil based mud resistant motor and saturated saltwater mud resistant motor.
Outstanding Features
Various rotation rate and torque,high efficiency,wide flow range,smooth operation,easy maintenance,high reliability, long service life.
Safe Application
Adequate strength and specially designed multiple falling-off-proof devices to ensure safe drilling operation.
Model |
Tool OD
mm |
Bit Size
mm |
Connected Thread | Lobe | Stage |
Flow Rate
lpm |
Rotary Speed
rpm |
Working pressure loss
Mpa |
Output Torque
N.m |
Max Pressure Loss
Mpa |
Max Torque
N.m |
Working Pressure
KN |
Max Pressure
KN |
Output Power
KW |
5LZ165X7.0-3.5 | 165 | 213-251 | 4 1/2REG | 5:6 | 3.5 | 87-174 | 2.8 | 2555 | 3.955 | 3609 | 80 | 160 | 66 | |
5LZ165X7.0-4 | 165 | 213-251 | 4 1/2REG | 5:6 | 4 | 862-1724 | 87-174 | 3.2 | 3673 | 4.52 | 4878 | 80 | 160 | 88 |
5LZ165X7.0-5 | 165 | 213-251 | 4 1/2REG | 5:6 | 5 | 862-1724 | 87-174 | 4 | 4590 | 5.65 | 6484 | 80 | 160 | 100 |
5LZ165X7.0-6 | 165 | 213-251 | 4 1/2REG | 5:6 | 6 | 862-1724 | 87-174 | 4.6 | 5509 | 6.78 | 7781 | 80 | 160 | 121 |
7LZ165X7.0-3.8 | 165 | 213-251 | 4 1/2REG | 7:8 | 3.8 | 1200-2400 | 51-103 | 3.04 | 8975 | 4.3 | 12700 | 80 | 160 | 123 |
5LZ172x7.0-4 | 172 | 213-251 | 4-1/2REG | 5:6 | 4 | 947-1894 | 78-154 | 3.2 | 4160 | 4.52 | 5525 | 100 | 170 | 126 |
5LZ172x7.0-5 | 172 | 213-251 | 4-1/2REG | 5:6 | 5 | 947-1894 | 78-154 | 4 | 5200 | 5.65 | 7345 | 100 | 170 | 118 |
5LZ172x7.0-6 | 172 | 213-251 | 4-1/2REG | 5:6 | 6 | 947-1894 | 78-154 | 4.8 | 6240 | 6.78 | 8814 | 100 | 170 | 142 |
7LZ172x7.0-5 | 172 | 213-251 | 4-1/2REG | 7:8 | 5 | 1183-2366 | 84-168 | 4 | 7176 | 5.65 | 10137 | 100 | 170 | 150 |
7LZ172x7.0-5.5 | 172 | 213-251 | 4-1/2REG | 7:8 | 5.5 | 1183-2366 | 84-168 | 4.4 | 7895 | 6.22 | 11160 | 100 | 170 | 176 |
7LZ172x7.0-5.7 | 172 | 213-251 | 4-1/2REG | 7:8 | 5.7 | 1183-2366 | 76-152 | 4.56 | 9030 | 6.44 | 12750 | 100 | 170 | 170 |