High Performance 8 3/4 Inch PDC Bits China Factory Suppliers

Premium 8 3/4 inch PDC bits from a leading China factory. Designed by expert suppliers for soft to medium-hard formations with abrasive interlayers, offering superior impact and wear resistance for maximum ROP.

SupplierHEJIAN YINRUH DRILL BIT MANUFACTURE CO., LTD.www.yhrockdrill.com

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About this product

Product information from the supplier.

Our 8 3/4 Inches PDC Bits are engineered for high-performance drilling in demanding geological formations. Featuring 16mm premium cutters and a robust 5-blade configuration, these bits are designed to maximize penetration rates while maintaining superior directional stability. By integrating a high-strength alloy steel body, the tool ensures exceptional durability and resistance to the rigorous stresses encountered in oil and gas drilling operations.

The cutting architecture utilizes polycrystalline diamond (PDC) composite cutters, renowned for their extreme hardness and wear resistance. To further extend service life, the drill bit crown undergoes a specialized surface hardening process, significantly enhancing erosion resistance. This synergy of material science and precision engineering delivers a cost-effective drilling solution that minimizes downtime and optimizes overall operational efficiency.

Detailed Parameters

Size (in/mm)	8 3/4" / 222.25mm	Number of Blades	5
Primary Cutter Size	16mm	Nozzle Quantity	7
Gauge Length	2" - 3.5"	Connection	4-1/2" API REG
Recommended RPM	60-250 r/min	Recommended WOB	30-180 KN
Recommended Flow Rate	25-36 lps	Body Material	Medium Carbon Alloy Steel

Key Advantages

High Wear Resistance

Equipped with PDC composite cutters that offer extreme hardness for prolonged life in abrasive formations.

Enhanced Efficiency

The 5-blade design optimizes the cutting face to increase ROP (Rate of Penetration) significantly.

Surface Hardening

Advanced crown hardening process provides superior protection against fluid erosion.

Robust Steel Body

Constructed from high-strength alloy steel for maximum toughness and structural integrity.

Precision Fit

Press-fit cutter attachment method ensures stability and prevents cutter loss during drilling.

Optimized Hydraulics

7-nozzle configuration ensures efficient cuttings removal and cutter cooling.

Product Gallery

Management Platforms

Inventory Control

Real-time tracking of PDC bit stock levels to ensure zero project delays.

Parameter Optimization

Expert guidance on RPM and WOB settings to maximize bit lifespan.

Quality Monitoring

Strict quality assurance checks for every cutter and alloy steel body.

Technical Support

24/7 professional consultation for drilling site challenges.

Logistics Tracking

Secure global shipping with end-to-end tracking for heavy equipment.

Custom Engineering

Tailored bit designs based on specific geological survey reports.

Investment Return Comparison

Performance Metric	Standard Steel Bits	Premium PDC Bits
Drilling Speed (ROP)	Moderate	Ultra-High
Tool Lifespan	Short to Medium	Extended Duration
Trip Frequency	High (Frequent Changes)	Low (Fewer Trips)
Wear Resistance	Standard	Superior (Diamond)
Overall Cost/Foot	Higher	Significant Reduction

Frequently Asked Questions

Q: What is the primary advantage of using PDC bits over Roller Cone bits?

PDC bits offer a higher Rate of Penetration (ROP) and longer service life because they shear the rock rather than crushing it, eliminating the need for moving parts like bearings.

Q: How should I manage RPM and WOB for the 8 3/4" PDC bit?

Recommended RPM is 60-250 r/min and WOB is 30-180 KN. Note that the upper limits of both should not be used simultaneously to prevent premature tool failure.

Q: What materials are used in the construction of the bit body?

The bit body is manufactured from high-strength medium carbon alloy steel, which provides the necessary toughness and strength for oil and gas drilling applications.

Q: How does surface hardening improve the bit's performance?

Surface hardening on the bit crown significantly increases erosion resistance, preventing the drill fluid from wearing down the steel body prematurely.

Q: Can these bits be used in extremely hard rock formations?

Yes, the polycrystalline diamond composite cutters are specifically designed for high hardness and wear resistance, making them suitable for various challenging formations.

Q: What is the purpose of the 7-nozzle configuration?

The nozzles provide essential hydraulic cleaning to remove rock cuttings from the face of the bit and cool the cutters to maintain optimal performance.