Understanding O2-deficient and CO2-enriched gas production and migration in the subsurface above a coal post-mining area through in situ gas monitoring and modelling

Stéphane Lafortune (1) , Arnaud Charmoille (1) , Zbigniew Pokryszka (1)

1 INERIS - Institut National de l'Environnement Industriel et des Risques

INERIS works for 3 years on the characterization of O2-deficient and CO2-enriched gas production and migration processes above a former coal mining area where gas emissions occur at surface and which is close to a peat bog. The main objectives of this work were to determine the composition and origin of the emitted gas and the dynamics of its migration from the subsurface rock strata to the surface.

Keywords: GEOCHIMIE ISOTOPIC; MONITORING; CO2; POST-MINING; CARBON

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

Stéphane Lafortune, Arnaud Charmoille, Zbigniew Pokryszka. Understanding O2-deficient and CO2-enriched gas production and migration in the subsurface above a coal post-mining area through in situ gas monitoring and modelling. Goldschmidt 2011 "Earth, Life and Fire", Aug 2011, Prague, Czech Republic. ⟨ineris-00970885⟩