Role of Impurities on CO2 Injection: Experimental and Numerical Simulations of Thermodynamic Properties of Water-salt-gas Mixtures (CO2 + Co-injected Gases) Under Geological Storage Conditions

Jérôme Sterpenich (1) , Jean Dubessy (1) , Jacques Pironon (1) , Stéphane Renard (2, 1) , Marie-Camille Caumon (1) , Aurélien Randi (1) , Jean-Noël Jaubert (3) , Eric Favre (3) , Denis Roizard (3) , Marc Parmentier (4) , Mohamed Azaroual (4) , Véronique Lachet (2) , Benoît Creton (2) , Teddy Parra (2) , Elise El Ahmar (5) , Christophe Coquelet (5) , Vincent Lagneau (6) , Jérôme Corvisier (6) , Pierre Chiquet (7)

1 GeoRessources
2 IFPEN - IFP Energies nouvelles
3 LRGP - Laboratoire Réactions et Génie des Procédés
4 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
5 CTP - Centre Thermodynamique des Procédés
6 GEOSCIENCES - Centre de Géosciences
7 CSTJF - Centre scientifique et Technique Jean Feger

Role of impurities on CO 2 injection: experimental and numerical simulations of thermodynamic properties of water-salt-gas mixtures (CO 2 + co-injected gases) under geological storage conditions Abstract Regarding the hydrocarbon source and CO 2 capture processes, fuel gas from boilers may be accompanied by so-called "annex gases" which could be co-injected in a geological storage. These gases, such as SOx, NOx, or oxygen for instance, are likely to interact with reservoir fluids and rocks and well materials (casing and cement) and could potentially affect the safety of the storage. However, there are currently only few data on the behaviour of such gas mixtures, as well as on their chemical reactivity, especially in the presence of water. One reason for this lack comes from the difficulty in handling because of their dangerousness and their chemical reactivity. Therefore, the purpose of the Gaz Annexes was to develop new experimental and analytical protocols in order to acquire new thermodynamic data on these annex gases, in fine for predicting the behaviour of a geological storage of CO 2 + co-injected gases in the short, medium and long terms. This paper presents Gaz Annexes concerning acquisition of PVT experimental and pseudo-experimental data to adjust and validate thermodynamic models for water / gas / salts mixtures as well as the possible influence of SO 2 and NO on the geological storage of CO 2. The Gaz Annexes s new insights for the establishment of recommendations concerning acceptable content of annex gases.

Mots clés: Co-injected gases; SO2; NO; CO2 storage

Domaines: Sciences de la Terre

Jérôme Sterpenich, Jean Dubessy, Jacques Pironon, Stéphane Renard, Marie-Camille Caumon, et al.. Role of Impurities on CO2 Injection: Experimental and Numerical Simulations of Thermodynamic Properties of Water-salt-gas Mixtures (CO2 + Co-injected Gases) Under Geological Storage Conditions. Energy Procedia, 2013, pp.3638-3645. ⟨10.1016/j.egypro.2013.06.257⟩. ⟨hal-01342017⟩