Surface and near surface geochemical surveying of a CO2 injection pilot: application study to the French Pyrenean foreland (Rousse CCS pilot)

Frédérick Gal (1) , Z. Pokryszka (2) , Stéphane Lafortune (2) , Karine Michel (1)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 INERIS - Institut National de l'Environnement Industriel et des Risques

The geochemical monitoring of the Rousse injection pilot, operated by TOTAL Exploration Pproduction France, is presented over a 5- years long time period. The monitoring consisted in the acquisition at regular frequency of soil gas concentrations and fluxes at selected sampling points, coupled with the study of the geochemical parameters evolution of a perched aquifer overlying the storage reservoir through a dedicated 85 m depth borehole. Baseline data were acquired between September 2008 and December 2009 then the monitoring shifted to the surveying of the pilot during the operating phase. This second phase ended in March 2013. Data acquired during these two phases are presented and discussed.

Domaines: Sciences de la Terre

Frédérick Gal, Z. Pokryszka, Stéphane Lafortune, Karine Michel. Surface and near surface geochemical surveying of a CO2 injection pilot: application study to the French Pyrenean foreland (Rousse CCS pilot). SES 2013 - Sustainable Earth Sciences 2013, Sep 2013, Pau, France. ⟨hal-00862588⟩