Laurence Jouniaux CNRS et Université de Strasbourg
• 1-D streaming potential modelling by finite element method. We modeled the Richards eq. and the Poisson eq.. We showed that the streaming potential measurement can be performed by a measurement of the difference of electrical potential and of the difference of the pressure, along the sand column during the drainage of the sand. We showed that it is necessary to make the hypothesis of a non-monotoneous behavior of the streaming potential coefficient as a function of the water-saturation, to explain the observations. [Allègre et al., GJI, 189, 285-295, 2012 pdf].