Four Blade PDC Drill Bit

Four Blade PDC Drill Bit – Advanced Engineering Solution for Medium to Hard Formation Drilling

Shaanxi Hainaisen Petroleum Technology Co., Ltd delivers the Four Blade PDC Drill Bit engineered with precision for medium to hard formation drilling operations. This 140mm bit achieves ideal load distribution and thermal stability in Level 1–12 strata by integrating 24 carefully placed PDC cutters (13mm/16mm) over four reinforced blades. With a 6,000-square-meter manufacturing facility in Xi'an and more than ten years of specialized experience in PDC cutting technology, our team of more than twenty senior specialists guaranties that every bit satisfies exacting quality standards. For oil and gas exploration, when reliable performance and longer tool life are essential, the four-blade configuration is the best option since it provides better directional stability than three-blade designs while maintaining greater hydraulic efficiency.

Engineering Advantages of Four-Blade Architecture

An designed balance between vigorous cutting action and operating stability is represented by the four-blade design. Our arrangement maximizes torque efficiency while offering greater gage protection, in contrast to higher blade-count bits that increase drag in softer forms.

Each blade has precisely positioned PDC cutters that were created using sophisticated Finite Element Method modeling. This prolongs the operational lifespan and minimizes premature wear by ensuring homogeneous stress distribution across cutting surfaces. For harsh downhole conditions, the 3-1/2 REG.PIN connection offers reliable torque transmission.

Optimal hydraulic flow patterns are produced by the thoughtful placement of the nozzle. This design effectively cools PDC cutters during high-temperature operations while preventing cuttings from building up in the bit face. Consistent Rate of Penetration without sacrificing hole quality is advantageous to your drilling team.

Material Science and Manufacturing Excellence

Our manufacturing process utilizes high-strength alloy steel bodies that provide exceptional impact resistance in challenging geological conditions. Each Four Blade PDC Drill Bit undergoes precision machining in our modern facility, where quality control protocols ensure dimensional accuracy and structural integrity.

The PDC cutters integrate thermal-stable synthetic diamond technology bonded to tungsten carbide substrates. This combination delivers superior abrasion resistance and maintains cutting efficiency across extended drilling intervals. Our independent R&D capabilities enable continuous material optimization based on real-world performance data.

With CNY 50 million in total investment supporting our production infrastructure, we maintain consistent manufacturing standards that meet international specifications. Our 150+ employee workforce includes specialists dedicated to quality assurance at every production stage.

Application Scenarios

Oil and Gas Exploration: The bit excels in interbedded formations where medium-hard limestone transitions into softer shale layers. The four-blade structure maintains directional control while the optimized junk slot area facilitates efficient cuttings evacuation in vertical and deviated wellbores.

Mining Engineering: When drilling blast holes in coal seams or mineral exploration projects, the bit delivers reliable performance in abrasive environments. The balanced blade design minimizes vibration, protecting downhole equipment and reducing non-productive time.

Geotechnical Investigation: For foundation engineering and site assessment projects requiring precise hole quality, this tool provides consistent diameter control and smooth bore walls essential for accurate core sampling and instrumentation installation.

Performance Optimization Features

The 12kg weight profile ensures adequate weight-on-bit transfer without overloading drilling rigs in your fleet. This specification suits both truck-mounted and stationary drilling platforms commonly deployed in exploration operations.

Customization options address specific operational requirements. Connection threading, cutter arrangement, and hydraulic configurations adapt to your geological conditions and drilling parameters. Our technical team collaborates with your engineers to specify optimal configurations before manufacturing begins.

The Level 1-12 strata rating indicates versatility across soft sedimentary rocks through moderately hard formations. This wide operational range reduces the need for frequent bit changes, improving operational efficiency and lowering per-meter drilling costs.

Selection Guide & Comparison

How to Choose the Right 4-Blade PDC Bit

1. Formation Type: Select cutter grade based on formation hardness
2. Well Type: Choose hydraulic design for vertical/directional/horizontal wells
3. Drilling Parameters: Match bit size and connection to your rig system
4. Budget: 4-blade steel body bits offer the best cost-performance for soft-medium formations

4-Blade vs. 5/6-Blade PDC Bits

Material

Our products are crafted using premium-grade materials:

• Matrix body: Tungsten carbide for excellent wear resistance
• PDC cutters: High-quality polycrystalline diamond compact for superior cutting ability
• Steel body: Heat-treated alloy steel for enhanced durability

Quality Control

At SHAANXI HAINAISEN, we maintain strict quality control measures throughout the manufacturing process:

• Rigorous material inspections
• Advanced CNC machining for precise dimensions
• Comprehensive performance testing before shipment

Project Case Studies

A regional mining operator in northern China deployed our Four Blade PDC Drill Bit for coal seam gas exploration in heterogeneous formations alternating between sandstone and mudstone. The project required 45 vertical holes to 800-meter depth.

Results demonstrated 28% improvement in average ROP compared to their previous multi-blade design. Bit life exceeded expectations with an average of 650 meters per bit before requiring replacement. The stable drilling performance reduced vibration-related equipment failures by 40%.

The client particularly valued the consistent hole quality that eliminated reaming operations, saving approximately 3.5 days per hole. Total project completion time decreased by 18% compared to their baseline schedule, delivering significant cost savings while maintaining safety standards.

Packaging and Transportation

Our drill bits are carefully packaged in sturdy wooden crates to ensure safe transportation. We work with reliable logistics partners to deliver your order promptly and securely.

Transaction Feedback

We value customer feedback and continuously strive to improve our products and services. Your satisfaction is our top priority.

After-Sales Service

Our commitment doesn't end with the sale. We provide comprehensive after-sales support, including:

• Technical assistance
• Maintenance guidance
• Performance optimization tips

Qualification Certification

SHAANXI HAINAISEN holds various industry Certifications, demonstrating our commitment to quality and safety standards.

FAQ

Q1: What formations work best with four-blade configurations?
A: Four-blade bits perform optimally in medium to medium-hard formations where you need balanced aggressiveness and stability. They suit interbedded geology better than highly specialized single-formation bits.

Q2: How does blade count affect drilling performance?
A: More blades increase stability in hard rock but create higher torque requirements. Four blades offer practical balance—sufficient stability for directional control without excessive drag that reduces drilling efficiency.

Q3: Can you customize cutter sizes for specific applications?
A: Yes, our engineering team configures cutter sizes and placement based on your formation characteristics and drilling parameters. Contact Us with your geological data for optimized specifications.

Q4: What maintenance extends bit lifespan?
A: Proper hydraulic flow rates prevent cutter overheating. Monitor weight-on-bit to avoid excessive loading. Regular inspection of nozzles ensures effective cuttings removal. Store bits in protective containers when not deployed.

Q5: How quickly can you fulfill urgent orders?
A: Standard delivery completes within 5-7 business days for stock configurations. Customized specifications require additional engineering time—typically 10-12 business days depending on modification complexity.

Contact Us

For inquiries or to place an order for our high-performance Four Blade PDC Drill Bits, please email us at hainaisen@hnsdrillbit.com.