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Influence of Wettability on Constitutive Relations and its Role in Upscaling

Author(s): W.E. Soil, W.G. Gray & A.F.B. Tompson Abstract: The lattice Boltzmann (LB) method is applied to simulating multifluid flow in porous media at sub-pore resolution to determine constitutive behaviors. We address the importance of the LB technique for identifying process based constitutive relationships, and demonstrate its application through analysis of the influence of wettability on interfacial areas and constitutive relationships. Porous media surface wettability is varied from uniformly strongly wetted by the resident fluid through to strongly wetted by the displacing fluid. Spatially variable wettability is also demonstrated. Primary imbibition and drainage displacements are run, and interfacial areas (IF A) as a function of time are determined and compa... Pages: 8 Size: 889 kb Paper DOI: 10.2495/CMWR980511

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