Computational Geosciences

, Volume 19, Issue 3, pp 635–653

Benchmarks for multicomponent reactive transport across a cement/clay interface

  • Nicolas C. M. Marty
  • Olivier Bildstein
  • Philippe Blanc
  • Francis Claret
  • Benoit Cochepin
  • Eric C. Gaucher
  • Diederik Jacques
  • Jean-Eric Lartigue
  • Sanheng Liu
  • K. Ulrich Mayer
  • Johannes C. L. Meeussen
  • Isabelle Munier
  • Ingmar Pointeau
  • Danyang Su
  • Carl I. Steefel
ORIGINAL PAPER

DOI: 10.1007/s10596-014-9463-6

Cite this article as:
Marty, N.C.M., Bildstein, O., Blanc, P. et al. Comput Geosci (2015) 19: 635. doi:10.1007/s10596-014-9463-6

Abstract

The use of the subsurface for CO2 storage, geothermal energy generation, and nuclear waste disposal will greatly increase the interaction between clay(stone) and concrete. The development of models describing the mineralogical transformations at this interface is complicated, because contrasting geochemical conditions (Eh, pH, solution composition, etc.) induce steep concentration gradients and a high mineral reactivity. Due to the complexity of the problem, analytical solutions are not available to verify code accuracy, rendering code intercomparisons as the most efficient method for assessing code capabilities and for building confidence in the used model. A benchmark problem was established for tackling this issue. We summarize three scenarios with increasing geochemical complexity in this paper. The processes considered in the simulations are diffusion-controlled transport in saturated media under isothermal conditions, cation exchange reactions, and both local equilibrium and kinetically controlled mineral dissolution-precipitation reactions. No update of the pore diffusion coefficient as a function of porosity changes was considered. Seven international teams participated in this benchmarking exercise. The reactive transport codes used (TOUGHREACT, PHREEQC, with two different ways of handling transport, CRUNCH, HYTEC, ORCHESTRA, MIN3P-THCm) gave very similar patterns in terms of predicted solute concentrations and mineral distributions. Some differences linked to the considered activity models were observed, but they do not bias the general system evolution. The benchmarking exercise thus demonstrates that a reactive transport modelling specification for long-term performance assessment can be consistently addressed by multiple simulators.

Keywords

Benchmark Cement Callovian-Oxfordian claystone TOUGHREACT PHREEQC CRUNCH HYTEC ORCHESTRA MIN3P 

Supplementary material

10596_2014_9463_MOESM1_ESM.pdf (115 kb)
(PDF 115 KB)
10596_2014_9463_MOESM2_ESM.pdf (116 kb)
(PDF 115 KB)
10596_2014_9463_MOESM3_ESM.docx (25 kb)
(DOCX 24.9 KB)

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Nicolas C. M. Marty
    • 1
  • Olivier Bildstein
    • 2
  • Philippe Blanc
    • 1
  • Francis Claret
    • 1
  • Benoit Cochepin
    • 3
  • Eric C. Gaucher
    • 1
    • 8
  • Diederik Jacques
    • 5
  • Jean-Eric Lartigue
    • 2
  • Sanheng Liu
    • 5
  • K. Ulrich Mayer
    • 4
  • Johannes C. L. Meeussen
    • 6
  • Isabelle Munier
    • 3
  • Ingmar Pointeau
    • 2
  • Danyang Su
    • 4
  • Carl I. Steefel
    • 7
  1. 1.BRGMOrleans CedexFrance
  2. 2.CEASaint-Paul-lez-DuranceFrance
  3. 3.ANDRAChâtenay-Malabry CedexFrance
  4. 4.Department of Earth, Ocean and Atmospheric SciencesUniversity of British ColumbiaVancouverCanada
  5. 5.Belgian Nuclear Research Centre SCK ⋅CENMolBelgium
  6. 6.Nuclear Research and Consultancy GroupPettenThe Netherlands
  7. 7.Lawrence Berkeley National LaboratoryBerkeleyUSA
  8. 8.TOTALCSTFJCedexFrance

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