An adaptive finite element model for well-bore breakout simulation

Abstract : A finite element formulation is proposed and implemented for analysing the stability of excavated wells using the DiMaggio-Sandler constitutive elastoplastic model with a typical carbonate reservoir configuration. The quality of the finite element approximation is ensured by applying smooth curved elements adapted to the well-bore geometry, and h − p adaptive finite element meshes in the plastic zone. General purpose procedures are defined to transfer the elastoplastic deformation history to newly created integration points. A breakout damage criterion is proposed based on the second invariant of the deviatoric plastic deformation tensor. This damage criterion is used to apply a mesh movement algorithm to represent material collapse. The automatic successive application of the breakout damage criterion results in elliptical realistically looking geometries obtained in experiments reported in the literature.
Liste complète des métadonnées
Contributor : Diogo Cecílio <>
Submitted on : Monday, August 20, 2018 - 3:48:57 PM
Last modification on : Tuesday, October 2, 2018 - 1:08:32 AM
Document(s) archivé(s) le : Wednesday, November 21, 2018 - 1:28:03 PM


Files produced by the author(s)


  • HAL Id : hal-01858387, version 1



Diogo Cecílio, Philippe Devloo, Sonia Gomes, Erick S R Santos. An adaptive finite element model for well-bore breakout simulation. 2018. ⟨hal-01858387⟩



Record views


Files downloads