490mm-pdc-bit
Product Description: Factory Direct Selling 490mm PDC Bit – Diamond Head PDC Drill Bit (API Standard)
The Factory Direct Selling 490mm PDC Bit is a high-performance, industrial-grade diamond head PDC (Polycrystalline Diamond Compact) drill bit, specifically engineered for oil and gas drilling operations in soft formations. Manufactured in accordance with API (American Petroleum Institute) standards, this bit is designed for reliable and efficient drilling performance under various geological conditions that involve low compressive strength formations.
Basic Specifications
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Product Name: Factory Direct Selling 490mm PDC Bit, Diamond Head PDC Drill Bit (API Standard)
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Diameter: 490 mm
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Blade Number: 6
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Body Type: Steel Body
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No. of Nozzles: 6
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Primary Cutter Size: 1913 (19 mm diameter, 13 mm height)
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Connection Thread: 7 5/8″ API Reg Pin
This bit features a robust steel body that offers superior durability and resistance to deformation under heavy drilling loads. With a large cutting diameter of 490mm, it is ideal for wide boreholes in applications such as oil, gas, geothermal, and water well drilling.
Cutting and Blade Design
The six-blade configuration is optimized for stability, durability, and cutting efficiency. The design allows for a smoother drilling process and better weight distribution, which is particularly important when drilling through soft, sticky formations. Each blade is equipped with premium-grade 1913 PDC cutters — these cutters are highly wear-resistant and deliver exceptional cutting power.
The 1913 cutters (19 mm x 13 mm) are known for their deep penetration capabilities and extended service life, especially when operating in low compressive strength environments.
Hydraulic Nozzle System
The bit includes six hydraulically optimized nozzles. This configuration ensures efficient mud flow to:
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Clean the bit face effectively
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Prevent bit balling in sticky formations like clay and marl
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Improve cooling of the cutting structure
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Enhance debris evacuation, minimizing clogging and resistance
These nozzles also support better bit stability and ROP (rate of penetration), which are critical in extended drilling operations.
Operating Parameters
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Rotational Speed (RPM): 60–260
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Weight on Bit (WOB): 30–120 kN/mm
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Maximum WOB: 150 kN
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Flow Rate: 26–56 liters per second (lps)
This wide range of operating parameters makes the bit highly adaptable to different drilling environments and rig configurations. However, for optimal performance, RPM and WOB must be selected within the recommended ranges, and both should not reach their upper limits simultaneously.
Recommended Formations
This PDC bit is designed for soft to medium-soft formations, particularly those with sticky or layered compositions. Recommended formations include:
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Clay – Sticky and plastic in nature; requires efficient cutter cleaning and bit face evacuation
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Marl – A calcium carbonate-rich material often mixed with clay
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Lignite – Soft, moisture-retaining, and prone to clogging bits
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Shale – Laminar and potentially unstable; requires steady and smooth drilling
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Sandstone – Low-compressive types that may be friable and abrasive
The bit’s blade structure, cutter selection, and hydraulic design make it particularly well-suited for navigating these complex geologies without premature wear or performance degradation.
Manufacturing and Standards Compliance
Manufactured to API standards, the bit’s 7 5/8″ API Reg pin connection ensures compatibility with a wide range of standard drill strings and tools. API compliance also guarantees that the product meets rigorous requirements for quality, performance, and safety.
Applications
This PDC drill bit is ideal for a variety of drilling applications including:
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Oil and gas exploration
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Geothermal energy development
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Water well drilling
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Directional and vertical drilling operations
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Infrastructure and geological surveying
Its large diameter, high-performance cutters, and optimized hydraulic system make it an excellent choice for demanding drilling projects requiring wide bores and consistent cutting power.
Conclusion
The 490mm Factory Direct Selling PDC Drill Bit is a versatile and powerful drilling tool engineered for high-efficiency drilling in soft to medium-soft formations. With a steel body, six-blade design, large premium PDC cutters, and a highly effective nozzle system, this bit delivers enhanced durability, performance, and operational cost-effectiveness. Whether you’re working in clay, shale, or marl, this bit is built to maintain high ROP and withstand challenging drilling conditions.
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