SJ type double way shock absorber is a kind of double-way shock absorbing tool
which is used to simultaneously slow down or eliminate the vertically or horizontally
shock from drill string.
It can reduce the damage sue to shocking to drill bit , drilling tool and surface drilling tool
so that the purpose of raising drilling speed and of reducing drilling cost shall be reached.
Specification of Double Way Shock Absorber
|
Type
|
O.D.(mm)
|
Waterhole(mm)
|
Max
Stroke
(mm)
|
Ambient
Temperature(℃) |
Max
Torque
(KN.m)
|
Max
Drilling Pressure
(KN)
|
Tensile
Load (KN) |
Pull-down
Overall Length(mm) |
Connection
|
|
SJ121B
|
121
|
38
|
120
|
-40~150
|
10
|
200
|
1000
|
4490
|
NC38
|
|
SJ160C
|
160
|
47
|
120
|
-40~150
|
15
|
340
|
1500
|
5150
|
NC46
|
|
SJ178C
|
178
|
57
|
100
|
-40~150
|
15
|
400
|
1500
|
5590
|
NC50
|
|
SJ203B
|
203
|
64
|
120
|
-40~150
|
20
|
480
|
1960
|
5800
|
6 5/8 REG
|
|
SJ229B
|
229
|
71
|
120
|
-40~150
|
20
|
540
|
1960
|
5630
|
7 5/8 REG
|

