Drill String Buckling in Unconventional Wells

This video, created from WellScan software, shows a typical case study for unconventional wells. The software simulates the drilling rotary phase along the lateral, where one sees first the vertical phase with no apparent buckling, then the curve with strong side forces and bending stress along the pipe, and at last the lateral section where buckling occurs in a washout section. Note the effect of WOB on buckling, going from 20 to 45klbs. WellScan software is the only commercial software able to run post buckling analysis in 3D wells without using FEA analysis (computation time greatly reduced!).