Basin-scale environmental impact of geologic carbon sequestration (GCS): Evaluation of a hypothetical scenario for full-scale deployment in the Illinois Basin

Quanlin Zhou, Jens Birkholzer, Hannes Leetaru, Edward Mehnert, Yu Feng Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

• An integrated model was developed to represent a hypothetical fullscale deployment scenario of carbon sequestration in the Illinois Basin • Simulated plume-scale behavior indicates favorable conditions for CO 2 storage in Mt Simon: • High-K and high-θ Arkosic Unit provides Excellent CO2 Injectivity in lower Mt Simon, • Alternating layering Significantly Retards upward CO2 migration, • Thick, extensive Mt Simon provides Large CO2 Storage Capacity, and • Thick regional-scale Eau Claire seal ensures Long-Term CO 2 Containment in the storage formation. • Simulated basin-scale behavior indicates that • High hydraulic diffusivity helps reduce pressure buildup in the core injection area, thus enhancing caprock geomechanical integrity, • High regional caprock permeability allows for natural attenuation of pressure in the storage formation, thus enhancing storage capacity of Mt Simon, • Brine upward migration occurs in the core injection area, into a thick series of overlying saline aquifers and aquitards, at a maximum velocity of ∼8 mm/year • Environmental Impact on Groundwater Resources • Environmental concerns of brine migration into the updip Mt Simon in northern Illinois and southern Wisconsin may not be an issue, • Moderate pressure buildup is obtained in northern Illinois, where upward brine migration might be a concern, if local seal imperfections exists, • Impact of GCS on shallow freshwater resources in northern Illinois may be less than that induced by heavy pumping from overlying freshwater aquifers. • Further research is needed to couple a regional groundwater flow model with the integrated model for environmental impact assessment.

Original languageEnglish (US)
Title of host publicationAmerican Water Works Association Annual Conference and Exposition 2009, ACE 2009
StatePublished - Dec 1 2009
EventAmerican Water Works Association Annual Conference and Exposition 2009, ACE 2009 - San Diego, CA, United States
Duration: Jun 14 2009Jun 18 2009

Publication series

NameAmerican Water Works Association Annual Conference and Exposition 2009, ACE 2009

Other

OtherAmerican Water Works Association Annual Conference and Exposition 2009, ACE 2009
CountryUnited States
CitySan Diego, CA
Period6/14/096/18/09

ASJC Scopus subject areas

  • Water Science and Technology
  • Public Administration

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