• Contents
  • Index
  • Search
  • Getting started
    • What's New
  • Main form
  • Units of measurement
  • Data input
    • Torque & drag form
    • Input tab - Settings & Parameters
    • Input tab - Hole sections & Drill string
    • Input tab - Survey data
      • Import survey data
  • Calculation output
    • Result chart
      • Scaling charts
      • Data reader
    • Result data
  • Program settings
  • Calculation theory
    • Calculation model
    • Calculation modes
      • Using actual data
    • Friction factors
    • Random tortuosity
    • Safety factor and margin of overpull
    • Buckling
    • The effect of rotation on torque and drag
    • Calculating an equivalent ID
  • Printing reports
    • Single depth report
    • Trip log report
  • Actual data
  • Air filled
  • Axial force
  • Buckling
  • Calculation mode
  • Calculation, equivalent ID
  • Calculation, Friction factor
  • Calculation, Single depth
  • Calculation, Trip log
  • Case information
  • Chen & Cheatham, Buckling force
  • Dawson-Paslay, Buckling force
  • Diverge-converge
  • Drag force
  • Equivalent ID
  • Floatation
  • Floating
  • Forces
  • Helical buckling
  • ID, equivalent
  • Lock up
  • Margin of Overpull
  • Moment of Inertia
  • MOP
  • Normal force
  • Operational modes
  • Post-buckling analysis
  • Print report
  • Relative stiffness
  • Report, Detailed results
  • Report, Single depth
  • Result data
  • Result data, copy to clipboard
  • Result data, export
  • Result data, save to file
  • Safety Factor
  • SF
  • Sinusoidal buckling
  • Stiff string
  • Tortuosity, Example
  • Tortuosity, Random
  • Trip Log, Actual data
  • Trip Log, Comparison
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