SGV 635 10 5/8"

Drillco Tricone SGA 635 10 5/8
Atlas Copco Pit Viper Drilling
Drillco Tricone SGA 545 G 12 1/4"
Drillco Tricone SGA 635 10 5/8
Atlas Copco Pit Viper Drilling
Drillco Tricone SGA 545 G 12 1/4"

Application: Used for high compressive strength, medium hard and high abrasive formation, such as limestone, sandstone, dolomite, flint, etc.

Compressive strength: 100-150 Mpa

Lug protection (G feature): Hard-metal and wear resistant carbide were applied to shirttail and shirttail lip. The shirttail features a “ terraced design”, which increases escape area and the bailing velocity and decrease cuttings regrind and wear on the bit.

Bearing structure (SGA): 

  • Bearing type: Roller-Ball-Roller- Thrust Button/ Flat compound sealed
  • Improvement item : The cone adding the seal groove, the bearing uses the flat seal ring
  • Advantages: The cone seal groove can limit the sealing ring moving in the bearing internal, improve the stability of the sealing. The flat sealing ring has longer sealing life and better sealing effect; than the traditional sealing ring
  • IADC: Code 635
  • Connection Thread: 6 5/8” API
  • Bit Diameter: 270mm
  • Weight on Bit: 32000-68000 lbs
  • Rotary Speed:  80-90pm
  • Air Pressure: 0.2-0.4MPa

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