12 1-4 LS537G

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Description

Applicable Conditions

  • Formations: Soft to Medium Hard Formation of Low Crushing Resistance
  • Drilling Condition:
    • Rotary Drilling
    • High Temp. Drilling
    • Deep Drilling
    • Motor Drilling

Bit Specifications

Parameter Specification
Bit Size 12 1/4″ (311.1 mm)
Model / Type LS537G
IADC Code 537
Bearing Type Journal Bearing
Total Insert Count 199
Gage Row Insert Count 63
Number of Gage Rows 3
Number of Inner Rows 11
Journal Angle 33°
Offset 6.5 mm
API Connection 6 5/8″ Reg. Pin
Features G: Extra Gauge Protection

General Operating Parameters

Parameter Recommended Range
Weight on Bit (WOB) 109 – 327 KN
Rotary Speed (RPM) 300 – 60 RPM
Recommended Upper Torque 37.93 – 43.3 KN·m