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Wettability Patterning in Microfluidic Systems and Applications in the Petroleum Industry

Abstract : Fractional or patterned wettability in porous media has a significant impact on multiphase flow behavior. It is believed that most of the world's oil reservoirs are characterized by heterogeneous wettability properties. Detailed investigations on the influence of fractional wettability on flow behavior in microfluidic porous medium models (micromodels) are therefore of great interest for both the study of fundamental concepts as well as application oriented research. A wettability patterning technique was developed, which allowed for the first time selective changes of surface wettability in enclosed microfluidic systems of complex geometry made of poly(dimethylsiloxane) (PDMS) at high resolution and high quality. Based on this progress in surface treatment the influence of fractional wettability on two-phase flow behavior in micromodels was studied and new flow regimes were revealed. Based on the emergence of different flow regimes depending on the wettability of a porous medium, a new technique was developed to assess wettability of a rock core sample by optical imaging and successfully demonstrated. The concept of flow measurements by optical imaging on pore scale was further extended and a novel microscopic imaging device was developed.
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https://pastel.archives-ouvertes.fr/pastel-00568996
Contributor : Ecole Espci Paristech <>
Submitted on : Thursday, February 24, 2011 - 9:46:42 AM
Last modification on : Wednesday, October 14, 2020 - 3:43:16 AM
Long-term archiving on: : Wednesday, May 25, 2011 - 2:42:10 AM

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  • HAL Id : pastel-00568996, version 1

Citation

Marc Schneider. Wettability Patterning in Microfluidic Systems and Applications in the Petroleum Industry. Fluid Dynamics [physics.flu-dyn]. Université Pierre et Marie Curie - Paris VI, 2011. English. ⟨pastel-00568996⟩

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