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Model ZDQ Hydroscillator
Model ZDQ Hydroscillator
Model ZDQ hydroscillator improves the effectiveness of bit pressure transmission and frictional resistance between BHA (the pit bottom assembly like drill bit, centering guide, extra-heavy drill rod ( drilling tools) except for ordinary drilling rod in drilling process by the longitudinal vibration generated by itself, especially to improve the drilling pressure transmission with a screw, reduce the frictional resistance, cut down the ordinary drilling sticking accidents, increase the dynamic drilling pressure and improve drilling efficiency in directional drilling process.
Specifications
| Model | ZDQ86 | ZDQ121 | ZDQ172 | ZDQ203 |
| Size mm(in) | 86(3-3/4) | 121(4-3/4) | 172(6-3/4) | 203(8) |
| Length m | 7.6 | 7.6 | 7.9 | 8.5 |
| Max. Tensile T | 80 | 160 | 290 | 430 |
| Max. Temperature ℃ | 160 | 160 | 160 | 160 |
| Operating Pressure Differential (psi) | 400-650 | 450-650 | 500-700 | 550-700 |
| Connection | 2-7/8" REG | NC38 | NC50 | 6-5/8" REG |
| Displacement Scope l/s | 6-10 | 9-15 | 25-35 | 35-55 |
| Pressure excited frequency Hz | 19-25 | 18-19 | 16-17 | 16 |
| Recommended Use Life h | 120 | 150 | 200 | 300 |
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