CO2 injection evaluation in the arbuckle formation under thrall-aagard reservoir in Kansas

Weon Shik Han, Si Yong Lee, Chuan Lu, Martin Dubois, Brian J. McPherson

Research output: Contribution to conferencePaper

Abstract

We used numerical simulation experiments to understand a potential CO 2 injection site, the Arbuckle formation under the Thrall-Aagard reservoir in Kansas. Including the potential CO2 plume migration, convective mixing, and drying-out processes, we investigated thermophysical processes associated with CO2 injection, namely, Joule-Thompson cooling and enthalpy changes associated water vaporization and CO2 dissolution. Results suggest that the rate of pressure dissipation after stopping injection was rapid in the Arbuckle formation since this formation is hydrologically connected to open surface, the Ozark Plateau aquifer system in Missouri. Consequently, CO2 densities radically drop with pressure dissipation. In addition, as supercriticalphase CO2 comes into contact with formation brine, CO2 will dissolve into this fluid, an exothermic reaction at typical in situ conditions appropriate for CO2 sequestration. Thus, CO2 dissolution potentially increases both the enthalpy and temperature of CO2-laden brine. However, the magnitude of this increase was minor in most cases (less than 1°C). In summary, the detailed understanding of thermophysical properties of CO2 is necessary prior to field-scale deployment in this site.

Original languageEnglish
Publication statusPublished - 2010 Dec 1
Event44th US Rock Mechanics Symposium and the 5th US/Canada Rock Mechanics Symposium - Salt Lake City, UT, United States
Duration: 2010 Jun 272010 Jun 30

Other

Other44th US Rock Mechanics Symposium and the 5th US/Canada Rock Mechanics Symposium
CountryUnited States
CitySalt Lake City, UT
Period10/6/2710/6/30

All Science Journal Classification (ASJC) codes

  • Geology
  • Geotechnical Engineering and Engineering Geology

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    Han, W. S., Lee, S. Y., Lu, C., Dubois, M., & McPherson, B. J. (2010). CO2 injection evaluation in the arbuckle formation under thrall-aagard reservoir in Kansas. Paper presented at 44th US Rock Mechanics Symposium and the 5th US/Canada Rock Mechanics Symposium, Salt Lake City, UT, United States.