Down-hole Motors
分类: Down-hole Motor  发布时间: 2000-06-05 12:28 

Down-hole Motors
Down-hole Motors

Specifications

1. 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
×7
95
(33/4)
118-152
(45/8-6)
27/8REG
716
80-200
7.0
2.4
780
1150
1710
25
50
5LZ102
×7
102(4)
118-152
(45/8-6)
27/8REG
716
80-200
7.0
2.4
780
1150
1710
25
50
5LZ120
×7
120
(43/4)
149-200
(57/8-77/8)
31/2REG
1016
80-160
7.0
3.2
1215
1817
2560
68
80
5LZ127
×7
127
(5)
149-200
(57/8-77/8)
31/2REG
1016
80-160
7.0
3.2
1215
1817
2560
68
80
5LZ165
×7
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
×7
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
×7
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
×7
203
(8)
241-311
(91/2-121/4)

65/8REG
3250
80-150
7.0
4.0
6515
9215
13000
160
270
9LZ244
×7
244
(95/8)
311-445
(121/4-171/4)
65/8REG
4470
90-
150
7.0
3.2
7550
13740
18500
250
 

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