Soil/fluid/structure interaction of completion risers for brazilian deep waters

摘要

This work presents the numerical procedures for the analysis of a completion riser considering the soil-structure interaction. Nonlinear P-Y and T-Z curves, as established in API RP 2A -WSD, are used to represent the soil lateral (horizontal) and vertical behavior respectively. The riser is represented by finite elements with geometric nonlinear behavior. The dynamic analyses are performed in the frequency domain using linearization techniques.