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8 1/2 EM1357E
EASTAR
| PRODUCT SPECIFICATIONS | |||||||
| Number of Blades | 7 | ||||||
| Cutter Quantity | 90 | ||||||
| Primary Cutter Size | 13mm | ||||||
| Primary Cutter Quantity | 38 | ||||||
| Gauge Length | 60mm | ||||||
| Junk Slot Area | 7000mm2 | ||||||
| Connection | 4 1/2 REG | ||||||
| Bit Weight | 57KG | ||||||
| Nozzle Quantity/Type | 4N+3P | ||||||
| OPERATING RECOMMENDATIONS | |||||||
| Weight on Bit | 30～120 KN | ||||||
| Rotatoin Speed | 50～250 RPM | ||||||
| Hydraulic Flow Rate | 25～40 L/S | ||||||
| Recommended Torque | 16.63～23.71 Kn•m | ||||||
| Design Features | |||||||
| Suitable for drilling soft to medium hard formations. | |||||||
| Applicable range of the bit is widened through utilization of technologies such as impact resistant cutting structure and auxiliary cutters, etc. | |||||||
| Penetration depth control technology is applied on the bit to reduce vibration in all directions so as. to make the bit working more steadily. | |||||||
| CFD hydraulic balance design. | |||||||
| PRODUCT SPECIFICATIONS | |||||||
| Number of Blades | 7 | ||||||
| Cutter Quantity | 90 | ||||||
| Primary Cutter Size | 13mm | ||||||
| Primary Cutter Quantity | 38 | ||||||
| Gauge Length | 60mm | ||||||
| Junk Slot Area | 7000mm2 | ||||||
| Connection | 4 1/2 REG | ||||||
| Bit Weight | 57KG | ||||||
| Nozzle Quantity/Type | 4N+3P | ||||||
| OPERATING RECOMMENDATIONS | |||||||
| Weight on Bit | 30～120 KN | ||||||
| Rotatoin Speed | 50～250 RPM | ||||||
| Hydraulic Flow Rate | 25～40 L/S | ||||||
| Recommended Torque | 16.63～23.71 Kn•m | ||||||
| Design Features | |||||||
| Suitable for drilling soft to medium hard formations. | |||||||
| Applicable range of the bit is widened through utilization of technologies such as impact resistant cutting structure and auxiliary cutters, etc. | |||||||
| Penetration depth control technology is applied on the bit to reduce vibration in all directions so as. to make the bit working more steadily. | |||||||
| CFD hydraulic balance design. | |||||||
