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Experimental and Analytical Investigation of an Immiscible Displacement Process in Real Structure Micromodels

Author

Listed:
  • Christian Truitt Lüddeke

    (Institute of Subsurface Energy Systems, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
    Current address: Agricolastrasse 10, 38678 Clausthal-Zellerfeld, Germany.)

  • Calvin Lumban Gaol

    (Institute of Subsurface Energy Systems, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
    These authors contributed equally to this work.)

  • Gion Joel Strobel

    (Institute of Subsurface Energy Systems, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
    These authors contributed equally to this work.)

  • Leonhard Ganzer

    (Institute of Subsurface Energy Systems, Clausthal University of Technology, 38678 Clausthal-Zellerfeld, Germany
    These authors contributed equally to this work.)

Abstract

The recovery of oil from a reservoir can be accomplished with various methods, one of the most commonly applied types being waterflooding. A common theory used to describe immiscible displacement is the Buckley–Leverett theory. A brand new type of micromodel, generated and fabricated by using a micro-computer tomography ( μ CT) image stack of a real sandstone core, was used to conduct immiscible displacement experiments. Critical logging data were recorded, and a high-resolution camera took pictures of the displacement process. In an image processing tool (MATLAB), an algorithm was developed to evaluate the pictures of the experiment and to examine the changes in the saturations of the displacing and the displaced fluid. The main objective of the displacement experiment was to validate the new microchip in two-phase displacement experiments and to assess the feasibility of the image processing algorithm. This was performed by comparing the results of the experimental to the analytical solutions, which were derived from the Buckley–Leverett theory. The comparison of the results showed a good match between the two types of solutions. The applicability of the analytical results to the experimental procedures was observed. Additionally, the usage of the newly fabricated micromodel and its potential to visualize the fluid flow behavior in porous media were assessed.

Suggested Citation

  • Christian Truitt Lüddeke & Calvin Lumban Gaol & Gion Joel Strobel & Leonhard Ganzer, 2022. "Experimental and Analytical Investigation of an Immiscible Displacement Process in Real Structure Micromodels," Energies, MDPI, vol. 15(18), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:18:p:6741-:d:915580
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    References listed on IDEAS

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    1. Tao Zhang & Shuyu Sun, 2021. "Thermodynamics-Informed Neural Network (TINN) for Phase Equilibrium Calculations Considering Capillary Pressure," Energies, MDPI, vol. 14(22), pages 1-16, November.
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