• Enhanced Experimental Carbon Dioxide Sweep Using Surface Coated Silica Nanoparticles as a Foaming Agent

    Solvent flooding is a well-established method of enhanced oil recovery (EOR), with carbon dioxide (CO2) being the most often used solvent.

    The goal of the core flood experiments in this paper was to study the effectiveness of surface coated silica nanoparticles as an in-situ CO2 foaming agent. The experiments consisted of vertical core floods where liquid CO2 displaced brine from the top to the bottom of the core. In these experiments, breakthrough occurred 45% later with foamed CO2, and the final CO2 saturation was also 45% greater than with the unfoamed CO2.

    The study shows how nanoparticles stabilize the CO2 front. The results provide quantitative information on, as well as a graphical representation of, the behavior of the CO2 foam front as it advances through the core. This data can be used to upscale the behavior observed and properties calculated from the core-scale to the reservoir-scale to improve field applications of CO2 flooding.

    Our archived 2020-21 event content is now available free to SPE members! This presentation is from the 2021 SPE Annual Technical Conference and Exhibition in Dubai.

    • Paper Number: SPE-206278-MS
    • Published: 15 September 2021
    • Authors: Ahmad Alfakher; David A. DiCarlo

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  • Enhanced Experimental Carbon Dioxide Sweep Using Surface Coated Silica Nanoparticles as a Foaming Agent