9 7/8 inch Tricone Rock Bit – IADC 622
Short Description250.8 mm IADC 622 tricone rock bit with a 6 5/8 API REG connection.
Rock Bits
9 7/8 inch Tricone Rock Bit – IADC 622
250.8 mm IADC 622 tricone rock bit with a 6 5/8 API REG connection.
ÜRÜN AÇIKLAMASI
9 7/8 inch Tricone Rock Bit – IADC 622 is a three-cone drilling bit with a nominal diameter of 250.8 mm and a 6 5/8 API REG connection. The IADC 622 class identifies a Tungsten carbide insert (TCI) cutting structure and Air-cooled open bearing arrangement for medium-hard, abrasive formations.
The reference operating range is 60–115 RPM with 80–210 kN recommended weight on bit. Poor bottom-hole cleaning causes cuttings to be reground, raises heat and shortens cutter life. Final operating values must be checked against the formation, rig capacity and circulation conditions on site.
TECHNICAL SPECIFICATIONS
| Product type | Three-cone tricone rock bit |
|---|---|
| Nominal diameter | 9 7/8 inch / 250.8 mm |
| IADC code | 622 |
| Cutting structure | Tungsten carbide insert (TCI) |
| Formation class | Medium-hard, abrasive formations |
| Bearing arrangement | Air-cooled open bearing |
| Connection | 6 5/8 API REG |
| Reference rotary speed | 60–115 RPM |
| Recommended WOB | 80–210 kN |
| Circulation / nozzles | Side / 3 |
| Reference make-up torque | 38–43 kN·m |
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