  A constitutive model for North Sea Chalk. Application to reservoir compaction and to waterfloodingCharlier, Robert  ; Collin, Frédéric ; Schroeder, Christian et alin Pande, G. N.; Pietruszczak, S. (Eds.) Nomerical models in Geomechanics (2002) Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into ... [more ▼] Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into account these two effects. It is based on frictional – cap elastoplasticity and on the Barcelona unsaturated soil model. Oil – water – chalk interaction is modeled through the suction variable. The two saturating fluids flow is also developed. After implementation into a finite element code, these tools allow to simulate a waterflooding experiment on a chalk sample. The model appears to reproduce qualitatively and quantitatively the experimental results. [less ▲] Detailed reference viewed: 46 (10 ULg)Constitutive modeling of chalk. Application to waterfloodingCharlier, Robert ; Collin, Frédéric ; Schroeder, Christian et alin Auriault, J. L.; Geindreau, C.; Royer, P. (Eds.) Poromechanics II (2002) Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into ... [more ▼] Subsidence of chalk oil reservoirs in North Sea is related to the chalk compaction induced by fluid depletion and by the water – chalk interaction. A constitutive model is developed in order to take into account these two effects. It is based on frictional – cap elastoplasticity and on the Barcelona unsaturated soil model. Oil – water – chalk interaction is modeled through the suction variable. In a second step, viscous effects are added to the model. After implementation into a finite element code, these tools allow to simulate a waterflooding experiment on a chalk sample. The model appears to reproduce qualitatively and quantitatively the experimental results. [less ▲] Detailed reference viewed: 53 (8 ULg)The suitability of some Belgian Tertiary clays as construction material for landfill seals: Interaction with domestic landfill leachates; ; et al in Aardkundige Mededelingen (2002), 12 Detailed reference viewed: 31 (4 ULg)PASAChalk project (partially saturated chalk): constitutive modelling, determination of parameters using specific stress paths and application to the water-floodingSchroeder, Christian ; ; Charlier, Robert et alConference (2000) Detailed reference viewed: 29 (4 ULg) |
||
