PDC (Polycrystalline Diamond Compact) drill bits are cutting tools that use polycrystalline diamond material for drilling. These bits are monolithic in design, with no moving parts, providing a straightforward yet highly durable structure. They offer excellent impact resistance, making them suitable for drilling in soft to medium-hard formations. Field results have shown that PDC bits deliver fast penetration rates, increased footage, long service life, smooth drilling performance, fewer downhole problems, and high borehole quality.
Founded in southwestern China, SMKST has significantly contributed to global land drilling by supplying numerous rigs and oilfield equipment. We provide a variety of API-compliant PDC drill bits, including steel-body and matrix-body options. Our bits offer a cost-effective alternative to American and European suppliers while maintaining the same high quality.
Below are the features and specifications of our tungsten carbide matrix-body PDC drill bits for reference. We can also provide other commonly used PDC bit models to meet diverse drilling requirements.
Key Features of Tungsten Carbide PDC Drill Bits:
- Impact Resistance: Designed with a tungsten carbide matrix, ensuring robust impact resistance.
- Efficient Cleaning: Parabolic crown design maximizes the junk slot area for improved debris removal, extending bit life.
- Hydraulic Balance: Incorporates a hydraulic balance design with replaceable threaded nozzles for effective bottom-hole cleaning and cooling.
- Enhanced Stability: Asymmetric blade arrangement for improved drilling stability.
- Optimized Cutter Design: The arrangement of cutter density, shape, rake angle, and exposure is optimized for increased cutting efficiency and bit longevity.
- Versatile Use: Suitable for both rotary drilling and downhole motor operations.
- High-Specific Hydraulic Power: Recommended for use with high-specific hydraulic power to improve drilling performance.
Recommended Drilling Parameters (For Reference):
| Bit Size (in) | Flow Rate (L/s) | Rotation Speed (RPM) | Weight on Bit (kN) | Hydraulic Horsepower | Makeup Torque (kNm) |
|---|---|---|---|---|---|
| 8 1/8 | 25-38 | 60-250 | 30-100 | 2-7 | 24-26.5 |
| 8 3/8 | 25-38 | 60-250 | 30-100 | 2-7 | 24-26.5 |
| 8 1/2 | 25-38 | 60-250 | 30-100 | 2-7 | 24-26.5 |
| 8 3/4 | 25-38 | 60-250 | 30-100 | 2-7 | 24-26.5 |
| 9 1/2 | 25-38 | 60-250 | 30-100 | 2-7 | 40-45 |
| 12 1/4 | 44-66 | 60-250 | 30-100 | 2-7 | 50-60 |
Note: The upper weight limits on bit and rotation speed should not be used simultaneously.
PDC Drill Bit Models & Sizes (Examples):
| Bit Size (in) | Metric Size (mm) | Connection Thread (in) | Bit Weight (kg) |
|---|---|---|---|
| 8 1/8 | 206.4 | 4 1/2 REG | 63 |
| 8 3/8 | 212.7 | 4 1/2 REG | 67 |
| 8 1/2 | 215.9 | 4 1/2 REG | 70 |
| 8 3/4 | 222.3 | 4 1/2 REG | 72 |
| 9 1/2 | 241.3 | 6 5/8 REG | 85 |
| 12 1/4 | 311.1 | 6 5/8 REG | 105 |
Our PDC drill bits provide optimal performance across various drilling conditions, enhancing drilling efficiency and bit longevity. Contact us for customized options and pricing.
