■ PDC cutters of different features are selectedand bit profile design is optimized to suit different drilling applications in different formations to satisfy different requirement whendrilling soft to medium hard formations.
■ Better wearresistance and higher strength of the bit are guaranteed in regard to material and structure by using matrix body material with qualitymaterials.
■ Enhanced gage design toimprove the bit’s ability of gage protection.
■ Deep bladeand long parabolic configuration,ensure optimal bottom hole flow pattern and anti-balling.
■ Anti-whirl design improves ROP and enhances the driling stability.
■ According to the requirements of customers,design and produce different bits.
| Bit Specificatio | Recommended Operation Parameters | |||||||
| Size (Inches) | No.of Nozzle | Gauge Lengt (inches) | API Reg. (inches) | Hydraulic Flow Rate | Rotation Speed (r/min) | Weight On Bit | ||
| /s | gpm | kn | kibs | |||||
| 14-3/4 | 7R | 3-1/4 | 7-5/8 | 40-65 | 600-1000 | 60~300 | 45-150 | 9~30 |
| 11-5/8 | 7R | 3-1/8 | 6-5/8 | 35~60 | 550~950 | 60~300 | 35~130 | 8~29 |
| 12-1/4 | 7R | 2-1/2 | 6-5/8 | 37-62 | 590-980 | 60-300 | 40~140 | 9-30 |
| 9-7/8 | 5R+2F | 2-3/8 | 6-5/8 | 35~55 | 550~870 | 60~300 | 20~130 | 5~29 |
| 8-3/4 | 5R+1F | 2 | 4-1/2 | 24~42 | 380~670 | 60~300 | 20~110 | 5~25 |
| 8-1/2 | 5R+2F | 2-1/8 | 4-1/2 | 24~42 | 380-670 | 60-300 | 20~110 | 5~25 |
| 7-1/2 | 5R | 3 | 4-1/2 | 24-42 | 380-670 | 60-300 | 20-110 | 5-25 |
| 5-7/8 | 2R+1F | 1-1/2 | 3-1/2 | 18~32 | 280~490 | 60~300 | 10~80 | 2~18 |
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