Geochemical and reactive transport modeling of the injection of cooled Triassic brines into the Dogger aquifer (Paris basin, France) - BRGM - Bureau de recherches géologiques et minières Access content directly
Journal Articles Geothermics Year : 2015

Geochemical and reactive transport modeling of the injection of cooled Triassic brines into the Dogger aquifer (Paris basin, France)

Abstract

As another option for exploitation of the low-enthalpy geothermal resources of the Paris basin (France), currently limited to the carbonate Dogger aquifer, brine could be extracted from deeper Triassic sandstone reservoirs and re-injected into the Dogger aquifer, which has higher injectivity. The objective of the geochemical modeling work presented here is to identify the physical-chemical processes that are likely to be induced by the re-injection of the cooled Triassic brines into the Dogger aquifer and to predict their possible consequences on the Dogger porosity. The results suggest that this re-injection process may induce precipitation/dissolution reactions. However, the impact on porosity should be limited in magnitude (a few percent) and in extent (tens of meters around the well).
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hal-01066976 , version 1 (22-09-2014)

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Christelle Castillo, Christophe Kervévan, Dominique Thiéry. Geochemical and reactive transport modeling of the injection of cooled Triassic brines into the Dogger aquifer (Paris basin, France). Geothermics, 2015, 53, pp.446-463. ⟨10.1016/j.geothermics.2014.08.002⟩. ⟨hal-01066976⟩

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