Using tracer experiments to determine deep saline aquifers caprocks transport characteristics for carbon dioxide storage

P. Bachaud (1, 2) , P. Berne (1) , P. Boulin (1, 3, 4) , F. Renard (5, 6) , M. Sardin (2) , J.-P. Leclerc (2)

1 DTNM - Département des Technologies des NanoMatériaux
2 LSGC - Laboratoire des Sciences du Génie Chimique
3 ANDRA - Agence Nationale pour la Gestion des Déchets Radioactifs
4 LTHE - Laboratoire d'étude des transferts en hydrologie et environnement
5 LGCA - Laboratoire de Géodynamique des Chaines Alpines
6 PGP - Physics of Geological Processes [Oslo]

It is shown how a simple gas tracer technique can contribute to the determination of transport characteristics of tight rock formations. Main obtained parameters are intrinsic permeability and the Klinkenberg coefficient; permeability as low as 10-21 m2 is easily attainable. Some information is also gained on diffusion characteristics and porosity. An example of application is given using caprocks from a deep saline aquifer in the Paris basin.

Domains: Sciences of the Universe [physics]; Earth Sciences

P. Bachaud, P. Berne, P. Boulin, F. Renard, M. Sardin, et al.. Using tracer experiments to determine deep saline aquifers caprocks transport characteristics for carbon dioxide storage. 5th International Conference on Tracers and Tracing Methods, Sep 2008, Tiradentes, Brazil. ⟨insu-00352952⟩