Microemulsions as model fluids for enhanced oil recovery: dynamics adjacent to planar hydrophilic walls
1 Jülich Centre for Neutron Science, Forschungszentrum Jülich GmbH, Lichtenbergstrasse 1, 85747, Garching, Germany
2 Institue for Complex Systems 1: Neutron Scattering, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany
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After the dynamics of microemulsions adjacent to a planar hydrophilic wall have been characterized using grazing incidence neutron spin echo spectroscopy, the model of Seifert was employed to explain the discovered acceleration for the surface near lamellar ordered membranes. Reflections of hydrodynamic waves by the wall – or the volume conservation between the membrane and the wall – explain faster relaxations and, therefore, a lubrication effect that is important for flow fields in narrow pores. The whole scenery is now spectated by using different scenarios of a bicontinuous microemulsion exposed to clay particles and of a lamellar microemulsion adjacent to a planar wall. The Seifert concept could successfully be transferred to the new problems.
© Owned by the authors, published by EDP Sciences, 2012