NONLINEAR DYNAMICS OF A DRILLSTRING IMMERSED IN A 3D CURVED WELL, SIMULATIONS

The dynamics is then calculated by applying a time-integration scheme. The dynamic model is applied to a real case of a quasi-vertical well with field measurements of downhole vibrations along with surface data. Numerical simulations are carried on a drilling assembly of several kilometers' length.

The novelty of the proposed dynamics model is its ability to consider a realistic geometry of drilling assembly in 3D curved wells with fluid flows, and to give a complete study of the coupling phenomena between axial, torsional, and lateral vibrations. Read out the full tech paper here: https://www.helmerichpayne.com/resources/technical-publications/nonlinear-dynamics-of-a-drillstring-immersed-in-a-3d-curved-well-simulations-and-experiments or you can also contact us here: https://www.helmerichpayne.com/contact.