12 1/4 inch Tricone Rock Bit – IADC 135
Short Description311.2 mm IADC 135 tricone rock bit with a 6 5/8 API REG connection.
Rock Bits
12 1/4 inch Tricone Rock Bit – IADC 135
311.2 mm IADC 135 tricone rock bit with a 6 5/8 API REG connection.
ÜRÜN AÇIKLAMASI
12 1/4 inch Tricone Rock Bit – IADC 135 is a three-cone drilling bit with a nominal diameter of 311.2 mm and a 6 5/8 API REG connection. The IADC 135 class identifies a Milled steel tooth cutting structure and Gauge-protected sealed roller bearing arrangement for very soft and soft formations.
The reference operating range is 40–300 RPM with 110–270 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 | 135 |
| Cutting structure | Milled steel tooth |
| Formation class | Very soft and soft formations |
| Bearing arrangement | Gauge-protected sealed roller bearing |
| Connection | 6 5/8 API REG |
| Reference rotary speed | 40–300 RPM |
| Recommended WOB | 110–270 kN |
| Circulation / nozzles | Combined / 4 |
| Reference make-up torque | 38–43 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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