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The Matrix Body PDC Bit is engineered for maximum durability in challenging drilling environments where steel body bits might fail due to erosion or abrasion. Unlike steel body bits, the matrix body is composed of a specialized tungsten carbide composite, providing exceptional resistance to wear and corrosive drilling fluids. This bit is the premier choice for deep-hole drilling, geothermal projects, and abrasive sandstone formations.
Key Features
Exceptional Erosion Resistance: The sintered matrix body construction inherently resists the abrasive wear caused by high-velocity drilling mud and rock cuttings.
Longer Service Life: Designed to withstand prolonged exposure to harsh conditions, significantly reducing the frequency of bit replacements in deep or remote projects.
Advanced PDC Cutting Structure: Outfitted with high-stability PDC cutters that maintain a sharp edge even when drilling through abrasive strata.
Enhanced Hydraulic Performance: Features precision-molded fluid ports and junk slots that optimize cooling and ensure efficient cuttings removal.
High Torque Durability: The integrated design of the matrix body and cutting blades provides superior structural integrity under high-torque drilling parameters.
| Feature | Specification |
| Bit Type | Matrix Body (Sintered) PDC Bit |
| Body Material | Tungsten Carbide Composite Matrix |
| Cutter Technology | High-Grade Polycrystalline Diamond Compact |
| Formation Range | Abrasive Sandstone, Limestone, and Corrosive Strata |
| Connection Thread | API Standard (e.g., API Reg) |
| Application | Deep Well, Geothermal, Oil & Gas Exploration |
Extreme Wear Resistance: The tungsten carbide matrix structure performs exceptionally well in highly abrasive rock formations, significantly reducing the frequency of bit replacements.
Erosion Protection: The sintered material effectively resists the erosive damage caused by high-velocity drilling mud streams on the bit body.
Extended Service Life: Specifically engineered for deep-hole and long-cycle drilling in harsh environments, effectively lowering overall drilling costs.
Grade | Protodyakonov Coefficient (f) | Representative Formations/Rocks | Recommended Drill Bits |
Grade 1 (Loose Soil) | 0.3~1.0 | Secondary loess, secondary red rock, soft sand without gravel/breccia, diatomite | PDC drag bit、 PDC reaming bit、 PDC combined guide bit |
Grade 2 (Loose Rock) | 1~2 | Yellow rock, red soil, peaty clay, sand soil, kaolin-type formations | PDC drag bit、 PDC reaming bit、 PDC combined guide bit |
Grade 3 (Lightly Soft Rock) | 2~4 | Strongly weathered shale/slate/grazing rock/schist/micro-cemented sand layer | PDC drag bit、 PDC reaming bit、 PDC combined guide bit |
Grade 4 (Slightly Soft Rock) | 4~6 | Shale, sandy shale, oil shale, carbonaceous shale, calcareous shale, sandy shale interlayer, argillaceous limestone | PDC drag bit、 PDC concave drill bit、PDC arc angle drill bit、PDC reaming bit、 PDC combined guide bit |
Grade 5 (Slightly Hard Rock) | 6~8 | Gravel layer, crushed stone layer, collapsed argillaceous slate, sericite-chlorite greenstone slate, schist, limestone, marble | PDC drag bit、 PDC concave drill bit、PDC arc angle drill bit、PDC reaming bit、 PDC combined guide bit |
Grades 6–7 (Medium-Hard Rock) | 8~12 | Chlorite, mica, slate, dry wood rock, schist, silicified limestone, calcite | PDC concave drill bit、PDC arc angle drill bit、PDC reaming bit、 PDC combined guide bit |
Grades 8–9 (Hard Rock) | 12~16 | Silicified mica rock, gneiss, basalt, diorite, pyroxenite, quartz Anshan porphyry | PDC concave drill bit、PDC arc angle drill bit、PDC reaming bit、 PDC combined guide bit、Tricone Drill Bit |
Grades 10–11 (Extremely Hard Rock) | 16~18 | Granite, granodiorite, gneiss, rhyolite, quartzite | PDC concave drill bit、PDC arc angle drill bit、PDC reaming bit、 Flat Matrix、 Tricone Drill Bit |
Grade 12 (Extremely Hard Rock) | 18~20+ | Quartzite, jasper, hornfels, corundum rock, quartz, flint, jasper | PDC reaming bit、 Flat Matrix、 Tricone Drill Bit |