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Drilling Jar
Drilling Jar
Our full mechanical drilling jar is a downhole stuck freeing tool in drilling operation, which is connected to drill tool and works with drill string. It is the preferred oil drilling equipment for directional well, complicated well and deep well.
Our drilling jar consists of ZSJ drilling up jar and ZXJ drilling down jar, both of which can be mutually used or separately operated. The up jarring section adopts hydraulic mechanism. Its jarring force can be adjusted according to the upward elevating force, while it can not exceed the max. rated load for tool. The down jarring section is based on mechanical friction mechanism. Its jarring force is pre-adjusted by adjusting device before put into downhole. Adjustment is not allowed after jar is put into downhole.
Specifications of Drilling Jar
| Type | 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*103 | 18*103 | 15*103 | 15*103 | 15*103 | 13*103 | |
| Weight(KG) | Up | 1085 | 980 | 680 | 530 | 480 | 330 |
| Down | 1027 | 920 | 645 | 520 | 457 | 310 | |
As an experienced drilling jar manufacturer in China, Rugao Yaou Company is capable of providing various kinds of oil drilling equipment, including oil drilling, oil drilling tools, and solid control equipment, and more. All our products feature reliable quality, low prices, and long service life. We are located in Rugao, Jiangsu, where convenient transportation enables us to provide our products quickly and cheaply.
We look forward to cooperating with you. Welcome to contact us.
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- Shock Absorber
Our double way shock absorber is a kind of oil drilling equipment used for simultaneously slowing down or eliminating the vertical or horizontal shock from drill string. It can greatly reduce the damage (caused by shock) to drill bit, drilling tool and surface drilling tool ...
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- Cross Over Sub
Our cross over sub is designed for connection of drill stem component, which is suitable for petroleum, natural gas and geology drilling work.