7 7/8 inch Tricone Rock Bit – IADC 625
Short Description200 mm IADC 625 tricone rock bit with a 4 1/2 API REG connection.
Rock Bits
7 7/8 inch Tricone Rock Bit – IADC 625
200 mm IADC 625 tricone rock bit with a 4 1/2 API REG connection.
ÜRÜN AÇIKLAMASI
7 7/8 inch Tricone Rock Bit – IADC 625 is a three-cone drilling bit with a nominal diameter of 200 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 60–170 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 | 7 7/8 inch / 200 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 | 60–170 kN |
| Circulation / nozzles | Side / 3 |
| Reference make-up torque | 16–22 kN·m |
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Tricone sondaj matkabı; su kuyusu, maden ve jeotermal sondaj uygulamalarında farklı kaya formasyonlarının delinmesi için kullanılan üç konili döner bir rock bit çeşididir.
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