Description
Specifications
- a kind of downhole drill tool driven by mud.
2.Type:LZ series
down hole motor
As mud fluid from the mud pump enters the motor via the by-pass valve, a certain pressure difference is formed at the inlet and outlet of the motor, pushing the rotor to rotate. Torque and rotate speed are transferred via the cardan shaft and the driving shaft to the bit.
Performance of the down-hole drill motor depends mainly on performance parameters of the
screw motor.
| model | OD mm (in |
hole size mm(in |
connection thread API |
nominated flowing L/s |
bit rotate speed r/m |
noggle pressure decline MPa |
motor pressure decline MPa |
working torgue N·m | max.torgue kN·m2 |
nominated weight on bit kN |
nominated weight on bit kN |
| 5LZ95 Ã7 |
95 (33/4) |
118-152 (45/8-6) |
27/8REG | 716 | 80-200 | 7.0 | 2.4 | 780 1150 |
1710 | 25 | 50 |
| 5LZ102 Ã7 |
102(4) | 118-152 (45/8-6) |
27/8REG | 716 | 80-200 | 7.0 | 2.4 | 780 1150 |
1710 | 25 | 50 |
| 5LZ120 Ã7 |
120 (43/4) |
149-200 (57/8-77/8) |
31/2REG | 1016 | 80-160 | 7.0 | 3.2 | 1215 1817 |
2560 | 68 | 80 |
| 5LZ127 Ã7 |
127 (5) |
149-200 (57/8-77/8) |
31/2REG | 1016 | 80-160 | 7.0 | 3.2 | 1215 1817 |
2560 | 68 | 80 |
| 5LZ165 Ã7 |
165 (61/2) |
213-251 (83/8-97/8) |
NC50 41/2REG |
1932 | 80-160 | 7.0 | 3.2 | 2916 3996 |
6800 | 80 | 160 |
| 5LZ172 Ã7 |
172 (63/4) |
216-251 (81/2-97/8) |
NC50 41/2REG |
1932 | 80-160 | 7.0 | 3.2 | 2916 3996 |
6800 | 80 | 160 |
| 7LZ197 Ã7 |
197 (73/4) |
251-311 (97/8-121/4) |
51/2REG 65/8REG |
3250 | 80-150 | 7.0 | 4.0 | 6515 9215 |
13000 | 160 | 270 |
| 7LZ203 Ã7 |
203 (8) |
241-311 (91/2-121/4) |
65/8REG | 3250 | 80-150 | 7.0 | 4.0 | 6515 9215 |
13000 | 160 | 270 |
| 9LZ244 Ã7 |
244 (95/8) |
311-445 (121/4-171/4) |
65/8REG | 4470 | 90- 150 |
7.0 | 3.2 | 7550 13740 |
18500 | 250 |