8 1/2 inch Tricone Rock Bit – IADC 625
Kısa Tanıtım215.9 mm IADC 625 tricone rock bit with a 4 1/2 API REG connection.
Rock Bits
8 1/2 inch Tricone Rock Bit – IADC 625
215.9 mm IADC 625 tricone rock bit with a 4 1/2 API REG connection.
ÜRÜN AÇIKLAMASI
8 1/2 inch Tricone Rock Bit – IADC 625 is a three-cone drilling bit with a nominal diameter of 215.9 mm and a 4 1/2 API REG connection. The IADC 625 class identifies a Tungsten carbide insert (TCI) cutting structure and Gauge-protected sealed roller bearing arrangement for medium-hard, abrasive formations.
The reference operating range is 40–300 RPM with 110–230 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 | 8 1/2 inch / 215.9 mm |
| IADC code | 625 |
| Cutting structure | Tungsten carbide insert (TCI) |
| Formation class | Medium-hard, abrasive formations |
| Bearing arrangement | Gauge-protected sealed roller bearing |
| Connection | 4 1/2 API REG |
| Reference rotary speed | 40–300 RPM |
| Recommended WOB | 110–230 kN |
| Circulation / nozzles | Side / 3 |
| Reference make-up torque | 16–22 kN·m |
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