Transport in Porous Media

, Volume 86, Issue 2, pp 495–515

Microtomography and Pore-Scale Modeling of Two-Phase Fluid Distribution

  • Dmitriy Silin
  • Liviu Tomutsa
  • Sally M. Benson
  • Tad W. Patzek
Open Access
Article

DOI: 10.1007/s11242-010-9636-2

Cite this article as:
Silin, D., Tomutsa, L., Benson, S.M. et al. Transp Porous Med (2011) 86: 495. doi:10.1007/s11242-010-9636-2

Abstract

Synchrotron-based X-ray microtomography (micro CT) at the Advanced Light Source (ALS) line 8.3.2 at the Lawrence Berkeley National Laboratory produces three-dimensional micron-scale-resolution digital images of the pore space of the reservoir rock along with the spacial distribution of the fluids. Pore-scale visualization of carbon dioxide flooding experiments performed at a reservoir pressure demonstrates that the injected gas fills some pores and pore clusters, and entirely bypasses the others. Using 3D digital images of the pore space as input data, the method of maximal inscribed spheres (MIS) predicts two-phase fluid distribution in capillary equilibrium. Verification against the tomography images shows a good agreement between the computed fluid distribution in the pores and the experimental data. The model-predicted capillary pressure curves and tomography-based porosimetry distributions compared favorably with the mercury injection data. Thus, micro CT in combination with modeling based on the MIS is a viable approach to study the pore-scale mechanisms of CO2 injection into an aquifer, as well as more general multi-phase flows.

Keywords

Capillary pressure Microtomography Pore-scale modeling Two-phase flow 

Copyright information

© The Author(s) 2010

Authors and Affiliations

  • Dmitriy Silin
    • 1
  • Liviu Tomutsa
    • 1
  • Sally M. Benson
    • 2
  • Tad W. Patzek
    • 3
  1. 1.Lawrence Berkeley National LaboratoryBerkeleyUSA
  2. 2.Energy Resources Engineering DepartmentStanford UniversityStanfordUSA
  3. 3.Department of Petroleum and Geosystems EngineeringThe University of Texas at AustinAustinUSA

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