Reference : Mechanical behaviour of Lixhe chalk partly saturated by oil and water: experiment and mo...
Scientific journals : Article
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/427
Mechanical behaviour of Lixhe chalk partly saturated by oil and water: experiment and modelling
English
Collin, Frédéric mailto [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur]
Cui, Yu Jun [Ecole Nationale des Ponts et Chaussées > Institut Navier > CERMES > >]
Schroeder, Christian mailto [Université de Liège - ULg > Département Argenco : Secteur GEO3 > Géomécanique et géologie de l'ingénieur >]
Charlier, Robert mailto [Université de Liège - ULg > Département Argenco: Secteur GEO3 > Géomécanique et Géologie de l'Ingénieur > >]
2002
International Journal for Numerical and Analytical Methods in Geomechanics
John Wiley & Sons Ltd
26
9
897-924
Yes
International
0363-9061
W Sussex
[en] chalk compaction ; suction ; water-flooding tests ; multisurface plasticity ; numerical modelling
[en] Two or more different fluids generally saturate chalk in oil reservoir, and therefore its behaviour can be very complicated. In this paper, a constitutive law is proposed for modelling the mechanical behaviour of a chalk saturated by two non-miscible fluids, water and oil. The effects of the capillary pressure or suction are taken into account. They are considered as an independent variable, as in the Barcelona's basic model developed for unsaturated soils. On the other hand, internal friction and pore collapse are modelled as independent mechanisms. The determination of the parameters is based on triaxial and oedometer tests. Finally, in order to validate the model, predictions are compared with experimental results of water-flooding test. Copyright (C) 2002 John Wiley Sons, Ltd.
Projet Européen PASACHALK
Researchers ; Professionals
http://hdl.handle.net/2268/427

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