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New Findings from Kyushu University in the Area of Porous Materials Reported (Elucidating the Role of Interfacial Tension for Hydrological Properties...

August 12, 2014



New Findings from Kyushu University in the Area of Porous Materials Reported (Elucidating the Role of Interfacial Tension for Hydrological Properties of Two-Phase Flow in Natural Sandstone by an Improved Lattice Boltzmann Method)

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Porous Materials have been published. According to news originating from Fukuoka, Japan, by VerticalNews correspondents, research stated, "We investigated the interfacial tension (IFT) effect on fluid flow characteristics inside micro-scale, porous media by a highly efficient multi-phase lattice Boltzmann method using a graphics processing unit. IFT is one of the most important parameters for carbon capture and storage and enhanced oil recovery."

Our news journalists obtained a quote from the research from Kyushu University, "Rock pores of Berea sandstone were reconstructed from micro-CT scanned images, and multi-phase flows were simulated for the digital rock model at extremely high resolution (3.2 m). Under different IFT conditions, numerical analyses were carried out first to investigate the variation in relative permeability, and then to clarify evolution of the saturation distribution of injected fluid. We confirmed that the relative permeability decreases with increasing IFT due to growing capillary trapping intensity. It was also observed that with certain pressure gradient two crucial IFT values, and , exist, creating three zones in which the displacement process has totally different characteristics. When , the capillary fingering patterns are observed, while for viscous fingering is dominant and most of the passable pore spaces were invaded. When the invading fluid failed to break through. The pore-throat-size distribution estimated from these crucial IFT values (and agrees with that derived from mercury porosimetry measurements of Berea sandstone."

According to the news editors, the research concluded: "This study demonstrates that the proposed numerical method is an efficient tool for investigating hydrological properties from pore structures."

For more information on this research see: Elucidating the Role of Interfacial Tension for Hydrological Properties of Two-Phase Flow in Natural Sandstone by an Improved Lattice Boltzmann Method. Transport in Porous Media, 2014;104(1):205-229. Transport in Porous Media can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer - www.springer.com; Transport in Porous Media - www.springerlink.com/content/0169-3913/)

The news correspondents report that additional information may be obtained from F. Jiang, Kyushu University, Appl Mech Res Inst, Fukuoka 812, Japan. Additional authors for this research include T. Tsuji and C.H. Hu.

Keywords for this news article include: Asia, Japan, Fukuoka, Porous Materials

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Source: Journal of Technology


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