FS series
Comprehensive and fast drilling steel PDC bit
| Drill parameter | ||
|---|---|---|
| bit type | 8-1/2“ GS1305ST | |
| IADC Code | S433 | |
| Blade number | 5 | |
| Main cutting gear size | Φ13 mm | |
| Nozzle quantity | 5NZ | |
| Diameter length | 55 mm | |
| Connection button type | 4-1/2" API REG | |
| Top button torque | 24.1~26.5 KN·m | |
| Recommended parameters | ||
|---|---|---|
| speed | 60~260 rpm | |
| Drilling pressure | 20~100 KN | |
| Maximum drilling pressure | 130 KN | |
| displacement | 22~35 lps | |
| Bit feature | Spiral type double row teeth knife five wing design, rational allocation of different positions for the high quality of the small size of the PDC composite sheet, to maximize the local cutting tooth equivalent density, effectively improve the drill attack and abrasion resistance. The high quality arc PDC composite sheet is used to protect the diameter and reduce the wear of the rock to protect the diameter, which greatly increases the wear resistance and the stability of the bit diameter. High performance wear resistant materials for the surface of the knife wing, and the wear resistance and erosion resistance of the drill bit are enhanced. | |
| application | Applicable to medium hard formations with high compressive strength, containing abrasive, such as limestone, gypsum, dolomite and sandstone. | |
