CO 2 Migration Monitoring Methodology in the Shallow Subsurface: Lessons Learned From the CO 2 FIELDLAB Project

Maria Barrio (1) , Audun Bakk (1) , Alv-Arne Grimstad (1) , Etor Querendez (1) , Oliver Kuras (2) , Frédérick Gal (3) , Jean-François Girard (4) , Philippe Pezard (5) , Laurent Depraz (6) , Eric Baudin (7) , Lars Sønneland (8)

1 SINTEF Digital - Stiftelsen for INdustriell og TEknisk Forskning Digital [Trondheim]
2 BGS - British Geological Survey
3 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
4 IPGS - Institut de physique du globe de Strasbourg
5 Géosciences Montpellier
6 ImaGeau
7 Bureau Veritas Marine & Offshore
8 Schlumberger

A CO 2 migration field laboratory for testing of monitoring methods has been established in the glaciofluvial-glaciomarine Holocene deposits of the Svelvik ridge, near Oslo. A shallow CO 2 injection experiment was conducted in September 2011 in which approximately 1700 kg of CO 2 was injected at 18 m depth below surface. The objectives of this experiment were to (i) detect and, where possible, quantify migrated CO 2 concentrations, (ii) evaluate the sensitivity of the monitoring tools and (iii) study the impact of the vadose zone on measurements. This paper describes the injection, discusses the joint interpretation of the results and suggests some recommendations for further work.

Keywords: Leakage detection; mitigation; remediation; monitoring; geochemistry; borehole geophysics

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

Maria Barrio, Audun Bakk, Alv-Arne Grimstad, Etor Querendez, Oliver Kuras, et al.. CO 2 Migration Monitoring Methodology in the Shallow Subsurface: Lessons Learned From the CO 2 FIELDLAB Project. The 7th Trondheim CCS Conference, Jun 2013, Trondheim, Norway. ⟨10.1016/j.egypro.2014.07.008⟩. ⟨hal-01314396⟩