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Experimental Investigation on the Time Dependent Behaviour of a Multiphase Chalk

  • Grégoire Priol
  • Vincenzo De Gennaro
  • Pierre Delage
  • Thibaut Servant
Part of the Springer Proceedings in Physics book series (SPPHY, volume 112)

Summary

A series of high pressure oedometer compression tests were carried out on samples of Lixhe chalk (Belgium) containing various pore fluids: water, air (dry sample), oil (Soltrol) and oil/water under a controlled suction of 200 kPa. Strain curves with respect to time of tests carried out under a constant load were examined in a purpose of investigating the time dependent behaviour of chalk. A simple empirical exponential law able to account for the combined effects of stress and suction is proposed. Experiments show that it provides satisfactory results to predict a feature of multiphase chalk behaviour that is important in the study of the behaviour of oilfields.

Key Words

chalk multiphase creep water weakening suction collapse 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Grégoire Priol
    • 1
  • Vincenzo De Gennaro
    • 2
  • Pierre Delage
    • 2
  • Thibaut Servant
    • 2
  1. 1.Geotechnical DepartmentNTNUTrondheimNorway
  2. 2.Ecole Nationale des Ponts et ChausséesParis (CERMES, Institut Navier)Marne–la–Vallée cedex 2France

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