


Product Description: Long Worklife Drilling Rig PDC Diamond Drill Bit 4 Blades 152mm
The Long Worklife Drilling Rig PDC Diamond Drill Bit (4 Blades, 152mm) is a premium-quality drilling tool engineered for high-performance operations in medium to hard rock formations. Built with a strong steel body and precision PDC (Polycrystalline Diamond Compact) cutters, this bit combines cutting-edge materials and optimal design to deliver consistent drilling results while minimizing wear and operational costs.
Basic Specifications
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Product Name: Long Worklife Drilling Rig PDC Diamond Drill Bit 4 Blades 152mm
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Diameter: 152 mm
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Blade Number: 4
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Body Type: Steel Body
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Number of Nozzles: 4
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Primary Cutter Size: 1308 mm
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Connection Thread: 3 1/2″ API Reg Pin
The 152 mm (approximately 6 inches) diameter makes this bit ideal for small to mid-size boreholes. The 4-blade configuration is optimized for efficient cutting in tough formations, ensuring balanced performance and reducing vibrations during drilling. The steel body offers superior strength and impact resistance, making the bit suitable for applications requiring durability and repeated use in abrasive environments.
Cutting Structure and Design Features
The 1308 mm PDC cutters refer to cutters that are 13 mm in diameter and 8 mm in height. These PDC cutters are thermally stable, highly wear-resistant, and capable of maintaining sharp cutting edges over extended periods. This ensures a high rate of penetration (ROP) while minimizing downtime for bit replacement.
The 4 nozzles are strategically positioned to enhance hydraulic performance, allowing for optimal cleaning of the cutting face and improved removal of formation debris. This configuration prevents cutter balling and heat accumulation, which can severely impact drilling efficiency.
Operating Parameters
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Rotational Speed (RPM): 60–260 rotations per minute
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Weight on Bit (WOB): 30–140 kN/mm
This wide operating range allows for adaptation to varying downhole conditions. The bit can be used on rigs with different torque capacities, and the recommended WOB ensures maximum cutting performance without compromising the structural integrity of the bit. Operators should stay within these parameters to avoid excessive cutter wear or bit damage.
Recommended Formations
This PDC bit is particularly suitable for medium to medium-hard formations that exhibit high compressive strength and may be abrasive. Target formations include:
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Dolomite – A hard and dense carbonate rock requiring durable cutters
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Limestone – Especially harder types that can be both abrasive and compact
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Anhydrite – A challenging sulfate mineral often found in layered formations
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Sandstone – Particularly when cemented or quartz-rich, posing significant wear challenges
These geological conditions demand tools that offer both durability and precision cutting, and the 4-blade 152mm PDC bit meets this demand with reliable performance and long service life.
Performance Advantages
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Longer Service Life: High-quality PDC cutters and a reinforced steel body contribute to extended bit life, reducing replacement frequency.
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Improved Drilling Efficiency: The 4-blade design allows for aggressive cutting while maintaining good control and stability.
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Optimized Hydraulics: Four nozzles ensure effective cooling and debris removal, reducing the risk of cutter damage.
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Versatile Application: Can be used across various drilling operations, including oil and gas, geothermal, and mineral exploration, especially in formations known for being tough and abrasive.
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Reduced Operational Cost: Fewer trips and longer intervals between bit changes translate to reduced downtime and greater overall efficiency.
Conclusion
The Long Worklife Drilling Rig PDC Diamond Drill Bit (152mm, 4 Blades) is a rugged, high-performing drilling solution built for demanding geological conditions. Its steel body, advanced PDC cutter technology, and optimized hydraulic design make it an excellent choice for medium to hard formations where compressive strength and abrasiveness are key concerns. When used within the recommended parameters, this bit offers exceptional durability, efficiency, and return on investment for drilling operators in a variety of industries.







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