ZSJ/ZXJ Type Drilling Jar (hydraulic-mechanically) with API
ZSJ/ZXJ Type Drilling Jar (hydraulic-mechanically)
skype:yaoutrade2
The drilling jar which is connected with drill tool and worked with drill string is a downhole stuck freeing tool in drilling operation. It is a first selected 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, they can both be used mutually or operated separately. The up jarring section makes use of hydraulic mechanism, the jarring force can be adjusted according to up elevating load but can not exceed the max, load for tool load rated. The down jarring section takes use of mechanical friction mechanism, the jarring force is well readjusted by adjusting device before put into downhole. No re-adjustment can be allowed after jar is put into downhole.
Technical specifications and parameters
| Type | ZSJ80 | ZSJ76 | ZSJ70 | ZSJ62 | ZSJ56 | ZSJ46 |
Rated release force(KN) | 400~600 | 400~600 | 350~550 | 300~450 | 200~350 | 150~250 |
Down jarring test data
| Type | ZXJ80 | ZXJ76 | ZXJ70 | ZXJ62 | ZXJ56 | ZXJ46 |
Max.release force(KN) | 600 | 600 | 550 | 500 | 400 | 250 |
Thechnical specifications and parameters
| Type Parameters Item | ZSJ 80 ZXJ 80 | ZSJ 76 ZXJ 76 | ZSJ 70 ZXJ 70 | ZSJ 62 ZXJ 62 | ZSJ 56 ZXJ 56 | ZSJ 46 ZXJ 46 | |
| O.D.(mm) | 203 | 197 | 178 | 160 | 146 | 121 | |
| I.D(mm) | 71.4 | 71.4 | 70 | 57 | 57 | 51 | |
| Pull down overall length (mm) | Up | 5515 | 5515 | 5424 | 5360 | 5730 | 5270 |
| Down | 5250 | 5250 | 5215 | 5208 | 5000 | 5125 | |
| Pull down stroke(mm) | Up | 368 | 368 | 344 | 344 | 332 | 305 |
| Down | 178 | 178 | 178 | 178 | 180 | 178 | |
| Thread conn. API | 6 5/8"REG | 6 5/8"REG | NC50 | NC46 | 6 5/8"REG | NC38 | |
| Max.tensile load(KN) | 2500 | 2500 | 2500 | 2500 | 2500 | 2500 | |
| Max.Working Torque(N.m) | 20 x 103 | 18 x 103 | 15 x 103 | 15 x 103 | 15 x 103 | 13 x 103 | |
| Weight(KG) | Up | 1085 | 980 | 680 | 530 | 480 | 330 |
| Down | 1027 | 920 | 645 | 520 | 457 | 310 | |
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