Equal Wall Thickness Downhole Mud Motors
Product Description
Equal wall thickness downhole mud motor has good qualities of motor quality, service life and high temperature resistant. And it also has outstanding points on large motor pressure, strong power, low rotation rate and high plot ratio. Equal wall thickness downhole mud motor is a special kind of downhole motors. Even wall downhole mud motors have larger torque and longer service life. Besides, ERT downhole mud motors have more advantages in deep stratum well, large offset distance wells and short radius horizontal wells. The difference between equal wall thickness downhole mud motor and other downhole motors is that equal wall thickness downhole motor has equal thickness stator rubber sleeves.
Principle: Downhole motor is a kind of downhole dynamic drilling tool upon the power of drilling mud. Mud stream from the outlet of mud pump flows through a by-pass valve into the motor. This stream produces pressure loss at both inlet and outlet of the pump to push the rotor into rotating, and to transmit the torque and speed onto the bit. The downhole motor property mainly depends upon its property parameters.
Constitution: Downhole motor is composed of five assemblies: by-pass valve, motor, anti-drop, cardan shaft and drive shaft.
The down-hole motor is a positive-displacement down-hole motor. It converts the high pressure fluid power of the mud into the mechanical energy of drill bit rotation. The motor is
widely used in the drilling, making inclination, adjusting azimuth, coring, reaming, side tracking and work over for the directional wells, horizontal wells side tracked wells and straight
wells of oilfields and coal mines. In addition, it is suitable for compound drilling and traversing and other special works.
Table for equal wall thickness downhole mud motors' specifications and models:
Code of motor
Unit
5LZ57×7.0
5LZ60×7.0
5LZ73×7.0
5LZ89×7.0
5LZ95×7.0
7LZ120×7.0
Recommend Hole Size
mm
83-121
83-121
83-121
105-143
114-150
152-200
Recommend Hole Size
in
31/4-43/4
31/4-43/5
31/4-45/6
41/8-56/8
41/8-57/8
6-77/8
Input flow Rate
L/S
1.5-3.5
1.5-3.5
2.0-4.0
3.0-8.0
5.0-12.0
8.0-16.0
Motor Pressure Loss
MPa
3.2
3.2
3.2
3.2
3.2
3.2
Speed of the Bit
r/min
185-430
220-520
80-160
147-392
140-320
80-180
Working Torque
N.m
200
183
615
504
710
1850
Delay Dynamic Torque
N.m
350
320
1077
882
1240
3200
Output Power
KW
4.3-10.1
4.3-10.1
5.8-11.5
8.64-23.0
10.5-25.0
23.0-47.0
Recommend Drilling Weight
KN
5
5
12
20
21
64
Maxing Drilling Weight
KN
10
10
25
30
40
106
Thread Connection Top
11/2REG
11/2REG
23/8REG
27/8REG
27/8REG
31/2REG
Thread Connection Bottom
11/2REG
11/2REG
23/8REG
27/8REG
27/8REG
31/2REG
The Drill Length
mm
2822
2822
3423
2911
3920
5039
Code of motor
Unit
5LZ65×7.0v
5LZ165×7.0v
5LZ172×7.0v
5LZ172.5×7.0v
5LZ172.5×7.0v
Recommend Hole Size
mm
215-244
215-244
215-244
215-244
215-244
Recommend Hole Size
in
81/8-96/8
81/8-96/8
81/8-95/8
81/8-95/8
81/8-95/8
Input flow Rate
L/S
18.0-30.0
18.0-30.0
18.0-30.0
20.0-35.0
20.0-35.0
Motor Pressure Loss
MPa
3.2
4
4
4
4
Speed of the Bit
r/min
111-167
120-180
120-180
115-180
75-180
Working Torque
N.m
4440
5135
5135
6452
6627
Delay Dynamic Torque
N.m
7770
8987
8987
11299
11420
Output Power
KW
57.6-86.4
72.0-108.0
72.0-108.0
86.4-151.2
59.5-108.6
Recommend Drilling Weight
KN
80
90
90
100
80
Maxing Drilling Weight
KN
160
180
180
200
160
Thread Connection Top
41/2REG
41/2REG
41/2REG
41/2REG
41/2REG
Thread Connection Bottom
41/2REG
41/2REG
41/2REG
41/2REG
41/2REG
The Drill Length
mm
7408
7748
7391
8031
8631
We look forward for your cooperation.