Any vibration, such as bit whirl, increases the extremely high forces associated with drilling large holes – often destroying both the bit and other downhole tools. Additionally, high surface cutting speeds, particularly near gauge, accelerates abrasive wear. Pump capacity limitations make hydraulic design vital to keeping the hole clean and the bit cool. These factors present significant challenges in terms of bit design, metallurgy and manufacturing.
Solutions
Titan Fixed Cutter Bits
High Lateral Stability Index (LSI) designs resist external forces such as BHA whirl
SteeringWheel® gauge designs give full 360 degree circumferential coverage, improving bit stability
Raptor® deep-leached Thermostable PDC cutters dramatically enhance abrasion resistance
- Mega-P™ shirttail protection resists lateral movement
- Encapsulated Precision Logarithmic Roller (PLR) bearing design reduces stresses and increases fatigue life
- SuperTuff™ inserts combat high cutting forces and increased surface speeds. The MatchFit™ system improves insert retention
- Mega-P shirttail protection and GageGuard™ inserts dramatically enhance gauge protection
- Patented MudPick® hydraulics has been specifically optimized for large diameter bits. Our large diameter laboratory test facility is unique in that it enables pressurized testing of bits up to 17½”