12 1/4 inch Tricone Rock Bit – IADC 517
Kısa Tanıtım311.2 mm IADC 517 tricone rock bit with a 6 5/8 API REG connection.
Rock Bits
12 1/4 inch Tricone Rock Bit – IADC 517
311.2 mm IADC 517 tricone rock bit with a 6 5/8 API REG connection.
ÜRÜN AÇIKLAMASI
12 1/4 inch Tricone Rock Bit – IADC 517 is a three-cone drilling bit with a nominal diameter of 311.2 mm and a 6 5/8 API REG connection. The IADC 517 class identifies a Tungsten carbide insert (TCI) cutting structure and Gauge-protected sealed journal bearing arrangement for soft to medium-hard formations.
The reference operating range is 40–300 RPM with 110–250 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 | 12 1/4 inch / 311.2 mm |
| IADC code | 517 |
| Cutting structure | Tungsten carbide insert (TCI) |
| Formation class | Soft to medium-hard formations |
| Bearing arrangement | Gauge-protected sealed journal bearing |
| Connection | 6 5/8 API REG |
| Reference rotary speed | 40–300 RPM |
| Recommended WOB | 110–250 kN |
| Circulation / nozzles | Side or combined / 3 veya 4 |
| Reference make-up torque | 38–43 kN·m |
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