SHANDONG SAIGAO GROUP CORPORATION
SHANDONG SAIGAO GROUP CORPORATION
  • LZ127 Down-hole Motor

LZ127 Down-hole Motor

LZ127 down-hole motor is a common downhole power drill. The following is its introduction


Working principle of LZ127 Down-hole Motor

The down-hole motor is a volumetric motor. After the high-pressure drilling fluid enters the screw, a certain pressure difference is formed at both ends of the motor, which drives the motor rotor to rotate, and transmits the torque and speed to the drill bit through the universal shaft and the drive shaft, driving the drill bit to drill, thereby converting hydraulic energy into mechanical energy.



Structural composition of LZ127 Down-hole Motor

It is mainly composed of four parts: bypass valve assembly, motor assembly, universal shaft assembly and drive shaft assembly.



Performance characteristics of LZ127 Down-hole Motor

1. High temperature resistant technology. It solves the problem of stator rubber debonding and aging at high temperature, and the service life of a single downhole is more than 80 hours.


2. Ultra-long life design. In response to the needs of ultra-deep well drilling, the down-hole motor has strengthened the wear resistance of the bearing group and the transmission shaft in the structural design, effectively extending the continuous operation time underground.


3. Accurate trajectory control capability. The new generation of LZ127 down-hole motor are generally equipped with adjustable angle elbows. By optimizing the angle design and mud parameters, the drilling of some inclination increase sections and stable inclination sections can be successfully completed in one trip, and the directional cycle is shortened by 37.6%.



Technical parameters of LZ127 Down-hole Motor

Model

5LZ127×7.0V

5LZ127×7.0-8.3

7LZ127×7.0Ⅳ

Bit Size

in

5 7/8– 7 7/8

5 7/8– 7 7/8

5 7/8– 7 7/8

OD

mm

127

127

127

ABH

°

0-3

0-3

0-3

Lobe


5:6

5:6

7:8

Stages


5

8.3

4

Pressure

MPa

4

6.64

3.2

Flow Rate

L/s

9-13-16

9.5-13-19

9-14-18

Flow Per Revolution

L/r

6

3.9

6.9

Bit Speed

rpm

90-130-160

145-198-290

78-121-156

Torque

N·m

3040

4160

3580

Max.torque

N·m

5320

6240

6265

Output Power

kw

36-64

63-126

41-81

Weight on Bit

KN

50

50

50

Max. Weight on Bit

KN

70

70

70

Connection

Top Female Thread REG

3 1/2

3 1/2

3 1/2

Bottom Female Thread REG

3 1/2

3 1/2

3 1/2

Length

mm

6547

8431

6547

Weight

kg

441

566

441


PRODUCT
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