8 1/2 inch Tricone Rock Bit – IADC 627
Kısa Tanıtım215.9 mm IADC 627 tricone rock bit with a 4 1/2 API REG connection.
Rock Bits
8 1/2 inch Tricone Rock Bit – IADC 627
215.9 mm IADC 627 tricone rock bit with a 4 1/2 API REG connection.
ÜRÜN AÇIKLAMASI
8 1/2 inch Tricone Rock Bit – IADC 627 is a three-cone drilling bit with a nominal diameter of 215.9 mm and a 4 1/2 API REG connection. The IADC 627 class identifies a Tungsten carbide insert (TCI) cutting structure and Gauge-protected sealed journal bearing arrangement for medium-hard, abrasive formations.
The reference operating range is 40–280 RPM with 40–230 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 | 627 |
| Cutting structure | Tungsten carbide insert (TCI) |
| Formation class | Medium-hard, abrasive formations |
| Bearing arrangement | Gauge-protected sealed journal bearing |
| Connection | 4 1/2 API REG |
| Reference rotary speed | 40–280 RPM |
| Recommended WOB | 40–230 kN |
| Circulation / nozzles | Side / 3 |
| Reference make-up torque | 16–22 kN·m |
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