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Bit Size 9 3/8”(238.125mm)
Bit Connection 6 5/8”
IADC Code: M423
Blade Count 7pcs
Primary Cutter 16mm
Nozzles 6pcs
Junk Slot Area (in2) 29.54
Bit Rotary Speed (rpm) 60~260
Weight-On-Bit (KN) 30~140
Flow Rate (lps) 35~68
Application
 
Medium Hard formation of high resist compression strength, and have hard interlayer. Such as argillite, sandstone, limestone and so on.
 
Feature

• Balanced force design of spiral blades endows the bits with good orientation,little radial vibration as well as ability to increase cutter placement
• The reasonable layout of patented PDC cutters in various structures at different locations endows the bits with strong aggressiveness and anti-abrasiveness
• The simulation technology of dynamic flow field are used in hydraulic design to optimize down-hole flow field,beneficial to improve clearance speed and anti-balling simultaneously
• Cutter backing raised to minimize excessive depth of cut because of formation heterogeneity.
• Lo-Vibe depth of cut control inserts that can be replaced when needed (wear, breakage, etc.).
• Thermally stable polycrystalline (TSP) diamonds are placed on the leading edge of each blade.
• Lower than standard nozzle count. Reduced nozzle count to best match drilling, formation, and hydraulic system capabilities; reduces the flow rate required to achieve an appropriate hydraulic horsepower per square inch (HSI); avoids the use of numerous, smaller nozzles that can become pl ed.