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Drilling
ZSJ/ZXJ Hydraulic & Mechanica
- Type:Drilling
- CAS No:
- Qty in 20' FCL:
- Min. Order:
- Packaging:
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-
Parameters/Model
ZSJ80B
ZSJ76B
ZSJ70B
ZSJ64B
ZSJ62B
ZSJ56B
ZSJ46B
ZXJ80B
ZXJ76B
ZXJ70B
ZXJ64B
ZXJ62B
ZXJ56B
ZXJ46B
O.D.(MM)
203
197
178
165
160
146
121
I.D.(mm)
71.4
71.4
70
57
57
57
47
Pull downoverall
length (mm)
Up
5515
5515
5424
5360
5360
5730
5300
Down
5250
5250
5215
5215
5215
5000
4760
Pull down stroke
(mm)
Up
368
368
344
344
344
332
305
Down
178
178
178
178178
178
180
178
API Connection
6 5/8 REG
6 5/8 REG
NC50
NC46
NC46
4 1/2 FH
NC38
Max.tensile load(KN)
2500
2500
2300
2200
2200
2000
1400
Max.working Torque (N.m)
20×103
18×103
15×103
15×103
15×103
15×103
13×103
Rated release force for up jar (KN)
400~600
400~600
400~600
400~600
400~600
400~600
400~600
Max.up jarring release force (KN)
750
750
550
550
550
450
270
Max.down jarring release force (KN)
600
600
500
500
500
400
250
Weight
2124kg
1950kg
1200
1200
1090kg
870kg
650kg
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The drilling jar connecting with drill tool and working with drill strings is a downhole stuck freeing tool in drilling operation. When drill tool is happened to be stuck in downhole, the stuck drill tool can be released by in time starting the drilling jar to provide continuous up jarring or down jarring . It is a desire tool for directional well, complicated well and deep well.
The drilling jar is consisting of ZSJ type drilling up jar and ZXJ type drilling down jar. both can be used mutually or operated separately. The up jarring section takes use of hydraulic mechanism; the jarring force can be adjusted according to up elevating load but can not exceed the the max. load for tool load rated. The down jarring section takes use of mechanical friction mechanism; the jarring force is well pre-adjusted by adjusting device before put into down-hole. No re-adjustment can be allowed after jar is put into down-hole.
