Rock Bits

12 1/4 inch Tricone Rock Bit – IADC 625

311.2 mm IADC 625 tricone rock bit with a 6 5/8 API REG connection.

12 1/4 inch Tricone Rock Bit – IADC 625 - Product Visual

12 1/4 inch Tricone Rock Bit – IADC 625

Short Description

311.2 mm IADC 625 tricone rock bit with a 6 5/8 API REG connection.

ÜRÜN AÇIKLAMASI

12 1/4 inch Tricone Rock Bit – IADC 625 is a three-cone drilling bit with a nominal diameter of 311.2 mm and a 6 5/8 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 80–250 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 625
Cutting structure Tungsten carbide insert (TCI)
Formation class Medium-hard, abrasive formations
Bearing arrangement Gauge-protected sealed roller bearing
Connection 6 5/8 API REG
Reference rotary speed 40–300 RPM
Recommended WOB 80–250 kN
Circulation / nozzles Combined / 4
Reference make-up torque 38–43 kN·m
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