Using streamlines for highly-resolved, reactive transport for CO 2 leakage contamination in groundwater

Adam L. Atchley, Reed M. Maxwell, Alexis Navarre-Sitchler, Erica R. Siirla, John E. McCray

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

Abstract

We present a Lagrangian streamline approach where a large, heterogeneous 3D flow field is reduced to a number of ID transport simulations. The streamline approach allows the mapping of these ID reactive transport simulations back onto a 3D flow field, thus accounting for spatial heterogeneity within the aquifer and complex aqueous geochemical processes. A CO2 leakage scenario from a hypothetical CCS site is used where a resulting plume of CO2 lowers the groundwater pH and mobilizes metals from an existing mineral host-rock distribution. The plume migration and related metal dissolution and precipitation within the aquifer were simulated using this streamline- geochemical modelling approach under varying hydrological heterogeneity variances (σ2InK)- Results showed that heterogeneity significantly influences well contamination and geochemical processes.

Original languageEnglish (US)
Title of host publicationModels - Repositories of Knowledge
Pages141-148
Number of pages8
StatePublished - 2012
Externally publishedYes
Event8th International Conference on Calibration and Reliability in Groundwater Modeling - Repositories of Knowledge, ModelCARE 2011 - Leipzig, Germany
Duration: Sep 18 2011Sep 22 2011

Publication series

NameIAHS-AISH Publication
Volume355
ISSN (Print)0144-7815

Conference

Conference8th International Conference on Calibration and Reliability in Groundwater Modeling - Repositories of Knowledge, ModelCARE 2011
CountryGermany
CityLeipzig
Period9/18/119/22/11

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Keywords

  • Carbon capture and storage
  • Reactive transport
  • Uncertainty analysis

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