Microfluidics

Injectivity in geological formations is a well documented factor in fields related to new energies and the climate (geothermal energy, underground CO2 storage, etc.). The clogging of geological formations, a recurrent problem causing injectivity losses, is associated with the fact that reinjected water frequently carries a high concentration of suspended organic and mineral elements, in the form of colloidal particles. To attempt to overcome this clogging, or at the very least minimize it, it is important to have a clear understanding of the mechanisms at work. Such was the aim of this PhD research conducted using a microfluidics approach (Figure 1) combining two visualization techniques: optical imaging and laser-induced fluorescence.

Injectivity in geological formations has long been an important factor in oil production (enhanced recovery) but it is now just as important in fields related to new energies and the climate (geothermal energy, CO2 storage, etc.). Injectivity losses, which result from the clogging of geological formations, are a recurrent problem associated with the fact that reinjected water often carries a high concentration of organic and mineral elements in suspension, in the form of colloidal particles...

By combining battery, electric machine, power electronics and mechanical transmission, the electric vehicle is an example of an application that combines a range of constraints for the formulation of technical fluids. In recent years, there has been renewed interest in the study of the latter for the transport sector...

Pour de nombreuses applications industrielles, comme le recyclage chimique des plastiques, ou encore pour assurer la compatibilité entre polymères et nouveaux carburants, il est essentiel d’anticiper les interactions entre matériaux et fluides...

The diversification of resources (atypical oil feeds or bio-based feeds) is leading to the development of new conversion processes a or to the upgrading of flexibility for existing ones. These