Mechanical String Model

Torque & drag model for drilling & completion operations

  • Standard soft string model with extensions
  • Buckling and post-buckling calculations
  • Torque-buckling interaction
  • Wall climbing effects
  • Tri-axial stress calculations including the effects of hydraulic pressures and buckling
  • String length correction due to axial loads, buckling contraction, thermal expansion and hydraulic pressures
  • Flow-induced forces

Wellbore trajectory interpolation using Minimum Curvature Method.

  • Effects of cuttings accumulations
  • Tight spots
  • Stuck pipe
  • Realistic feedback on WOB and ROP