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Modelling of the Progressive Failure in a Wellbore Multilateral Junction with Cosserat Model

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Bifurcation and Degradation of Geomaterials with Engineering Applications (IWBDG 2017)

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Abstract

We employed a higher order continuum based on Mohr-Coulomb Cosserat elastoplasticity in a non-linear finite element analysis capable of modelling the localization of deformation in shear bands that leads to failure near underground openings. The model is used to investigate the stability of wellbore multilateral junctions. The obtained results show a progressive failure mechanism and the computed failure modes are in a good qualitative agreement with laboratory observations. We found that the multilateral junction of a lateral wellbore drilled to the direction parallel to the maximum insitu stress is more stable than in the case of a lateral wellbore drilled to the direction perpendicular to the maximum insitu stress.

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Acknowledgements

This study was supported by Schlumberger Cambridge Research.

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Authors and Affiliations

  1. Department of Civil and Environmental Engineering, University of Cyprus, 1678, Nicosia, Cyprus

    Panos Papanastasiou

Authors
  1. Panos Papanastasiou
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Correspondence to Panos Papanastasiou .

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Editors and Affiliations

  1. Department of Civil Engineering, Aristotle Univ of Thessaloniki Department of Civil Engineering, Thessaloniki, Greece

    Euripides Papamichos

  2. Department of Civil and Environmental En, University of Cyprus Department of Civil and Environmental En, Nicos, Cyprus

    Panos Papanastasiou

  3. School of Mechanical & Chemical Engg, University of Western Australia School of Mechanical & Chemical Engg, Crawley, West Australia, Australia

    Elena Pasternak

  4. Sch Civil, Envtl & Mining Engg, University of Western Australia Sch Civil, Envtl & Mining Engg, Crawley, West Australia, Australia

    Arcady Dyskin

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Papanastasiou, P. (2017). Modelling of the Progressive Failure in a Wellbore Multilateral Junction with Cosserat Model. In: Papamichos, E., Papanastasiou, P., Pasternak, E., Dyskin, A. (eds) Bifurcation and Degradation of Geomaterials with Engineering Applications. IWBDG 2017. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-56397-8_42

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  • DOI: https://doi.org/10.1007/978-3-319-56397-8_42

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-56396-1

  • Online ISBN: 978-3-319-56397-8

  • eBook Packages: EngineeringEngineering (R0)

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