In deep well drilling and hard rock mining, the thermal stability and wear resistance of PDC inserts directly determine operational efficiency and cost—the high temperatures generated by high-speed cutting and the intense friction from rock formations are often the “fatal weaknesses” of ordinary PDC inserts. Recent field tests in several complex mining areas have shown that Pyramid PDC inserts, with their unique structure and material advantages, have delivered outstanding results in thermal stability and wear resistance, making them the preferred choice for high-load operating scenarios.
Structural Enhancement of Thermal Stability: The Temperature Control Logic of Pyramid PDC Inserts
During drilling and mining, the intense friction between the cutting edge and the rock formation causes the temperature to rise rapidly. Once the critical value is exceeded, the diamond layer of the PDC insert is prone to detachment and performance degradation. The Pyramid PDC Insert’s four-sided pointed structure cleverly incorporates several design elements: a smaller contact area with the rock layer and a narrower heat concentration zone during cutting. Combined with the high-strength bonding process between the polycrystalline diamond layer and the cemented carbide matrix, heat is rapidly conducted to the matrix for diffusion, preventing localized overheating. Real-world testing shows that under continuous operation at 180℃, the Pyramid PDC Insert‘s diamond layer shows no oxidation or flaking, exhibiting 30% higher thermal stability than ordinary conical teeth. Even in high-temperature deep-well conditions, it maintains stable cutting performance.
Multi-edge Design Reduces Wear: The Core of Pyramid PDC Insert’s Durability
The key to wear resistance lies in reducing ineffective friction and preventing secondary wear from rock cuttings. The Pyramid PDC Insert employs a multi-cutting edge design with smooth connections, ensuring not only sharp cutting but also rapid rock cutting clearance, preventing “grinding wear” caused by rock cuttings accumulating on the cutting edge. Simultaneously, the pyramid-shaped edge structure ensures even wear distribution, preventing excessive localized wear. In field tests conducted in granite mining areas with a hardness of 2.8 g/cm³, the Pyramid PDC Insert, after 12 hours of continuous operation, showed only 0.2 mm of wear on the diamond layer, while ordinary PDC teeth experienced 0.5 mm of wear during the same period. In complex formations containing quartz sand, its service life was extended by 50% compared to conventional products, significantly reducing the frequency of tooth replacement.
Advantages in Adaptability to Operating Conditions: The Actual Benefits of Pyramid PDC Insert
For mining areas, the core value of thermal stability and wear resistance lies in cost reduction and efficiency improvement. In a certain oil and gas drilling project, the previously used ordinary PDC teeth were prone to failure at high temperatures, requiring replacement on average every 6 hours, with a single-well tooth replacement cost exceeding 10,000 yuan. After switching to Pyramid PDC Insert, it maintained good performance even after 24 hours of continuous operation, reducing the tooth replacement frequency to once every 3 days, and lowering the tool cost per well by 40%. In hard rock mining sites, its wear resistance extended the tooth replacement cycle from 15 days to 30 days, reducing downtime losses by 60%, fully verifying its practical value under high-temperature and high-wear conditions.
For details regarding the specifications, applicable scenarios, or to discuss cooperation regarding the Pyramid PDC Insert, please contact us through the following methods:
- Phone: +86 17791389758
- Official Email: jeff@cnpdccutter.com
Post time: Jan-08-2026
