High cutting efficiency: PDC bits use polycrystalline diamond as the cutting element, which possesses extremely high hardness and wear resistance. This enables efficient cutting in various rock types and increases drilling speed.
Excellent wear resistance and long service life: The cutting components of PDC bits feature a special design that ensures outstanding wear resistance. As a result, the bit maintains stable cutting performance over a long period, reducing the frequency of bit replacement and extending its service life.
Good stability: During the drilling process, PDC bits maintain a stable speed and direction, reducing vibration and deviation, which contributes to smooth drilling operations.
Wide adaptability: PDC bits are suitable for various rock types, including soft, hard, and mixed formations. They demonstrate excellent performance in the extraction of resources such as oil, natural gas, and geothermal energy.
| Parameter | Value |
|---|
| IADC | S223 |
| Nominal Size | 9½″ |
| Number of Blades | 5 |
| Primary Cutter Size | Φ19 mm |
| Number / Type of Nozzles (wash ports) | 6NZ |
| Gauge Length | 2.5″ |
| Junk Slot Area (in²) | 25.4 |
| Make‑up Torque (kN·m) | 51.7 – 56.9 |
| Rotational Speed (rpm) | 60 – 260 |
| Bit Load (kN/mm) | 30 – 120 |
| Maximum Bit Load (kN/mm) | 150 |
| Flow Rate (L/s or gpm?)* | 24 – 48 |
| Recommended Formations | Suitable for homogeneous, layered rocks with low compressive strength, such as clay, marl, lignite, and sands. |
