Main Products: Petroleum Equipments
drilling jar(hydraulic up jar,mechanical down jar)
Negotiable /Set
Min.Order:1 Set
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Sinotai Petroleum Equipment Co., Ltd.
Credit Member 4 years 
Business Type: Trading Company
Shandong ChinaMain Products: Petroleum EquipmentsProduct Details
drilling jar
1.The hydromechanical drilling jar consists of ZSJ type drilling up jar and ZXJ type drilling down jar, both they can be used mutually or operated separately .
2.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 max. load for tool load rated .
3.The down jarring section takes use of mechanical friction mechanism, the jarring force is well preadjusted by adjusting device before put into downhole.
4.No re-adjustment can be allowed after jar is put into downhole
Model | ZSJ80B | ZSJ76B | ZSJ70B | ZSJ62B | ZSJ56B | ZSJ46B | |
O.D.(mm) | 203 | 197 | 178 | 160 | 146 | 121 | |
Hole(mm) | 71.4 | 71.4 | 70 | 57 | 57 | 51 | |
overall length (mm) | up | 5515 | 5515 | 5424 | 5360 | 5730 | 5300 |
down | 5250 | 5250 | 5215 | 5215 | 5000 | 4760 | |
Overall trip(mm) | up | 368 | 368 | 344 | 344 | 332 | 305 |
down | 178 | 178 | 178 | 178 | 180 | 178 | |
Connection thread API | 6 5/8 REG | 6 5/8 REG | NC50 | NC46 | 4 1/2 FH | NC38 | |
Max tensile load (KN) | 2500 | 2500 | 2300 | 2200 | 2000 | 1400 | |
Max torque (N.m) | 20×103 | 18×103 | 15×103 | 15×103 | 15×103 | 13×103 | |
up jarring standard release force (KN) | 400~600 | 400~600 | 350~550 | 300~450 | 200~350 | 150~250 | |
Max up jarring release force (KN) | 750 | 750 | 550 | 550 | 450 | 270 | |
Max down jarring release force (KN) | 600 | 600 | 550 | 500 | 400 | 250 | |
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