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Post-Doctoral Position : Modelling of fracturing mechanisms in unconsolidated sand reservoirs under fluid injection

Context In hydrocarbons producing fields, Produced Water Re-Injection (PWRI) is known as an economically attractive and environmentally friendly method to manage the produced water. This method has the advantage to maintain the pressure level in the reservoir in order to enhance the hydrocarbon production. However, this technique faces challenges such as the deterioration of the […]

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Thèse : « Mécanique des failles d’argiles gonflantes de la simulation moléculaire au séisme »

Les zones de failles des plaques tectoniques présentent une grande variété de comportements mécaniques, depuis des glissements asismiques jusqu’à des séismes majeurs. A ce jour, il n’y a pas de consensus sur les mécanismes contrôlant cette diversité des modes de glissement des failles. Une origine possible pourrait être le comportement des smectites, une argile gonflante […]

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Effect of adjuvants on the contact properties of colloidal particles

Colloidal suspensions are ubiquitous in our environment (cosmetics, foods, fresh building materials, environmental fluids, …). When the solid volume concentration is high enough (30% or more) the rheology of these materials is controlled by the interactions between particles, whether they are contact or short range. In many practical applications, polymers are added (adjuvantation) to the […]

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Thèse : Modélisation du comportement d’un milieu poreux fracturé face à une sollicitation de gaz

Contexte Dans le cadre du projet Cigéo, le creusement des galeries souterraines dans les argilites du Callovo-Oxfordien induit un réseau de fractures autour des ouvrages. Cette fracturation présente un profil de propagation en mode mixte I/II typique, qui résulte de la décharge instantanée des argilites au moment du creusement. La topologie et l’étendue spatiale du […]

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Sujet de Thèse : Experimental and numerical investigation of environmental factors affecting grain crushing

Joint PhD position at UCLouvain and Ecole des Ponts in Geomechanics Grain breakage is a common occurrence in granular media when the intergranular forces exceed the individual particle strength and is of major importance in many areas of geosciences. Experimental evidences suggest that particle breakage may significantly influence the mechanical behavior of the material promoting […]

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Thèse : Experimental and numerical study on the hydromechanical-gas behaviour of clay materials

Clay materials have been considered as potential candidate for closure structures in high-level radioactive waste repositories. In spite of several studies investigating its hydro-mechanical behaviour, the kinetics of the re-saturation process and the development of swelling pressure of clay materials, observed in the large-scale experiments during long periods (e.g. several years), can still not be […]

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