CNRS
Villeneuve-les-Maguelone, France

STORAGE

SHAGAL (FR7.8)

SHAllow GAs injection experimentaL site

This shallow experimental site along the Mediterranean shore was developped over the past 15 years by CNRS and the University of Montpellier. It has been used to test a series of new downhole monitoring instrument in the context of gas injection. The geological, petrophysical, geophysical and hydrological properties of the clastic formations penetrated down to 60 m depth have been fully studied, outlining the presence of silt and clay barriers and the presence of a few permeable layers, especially at 8 and 12 m depth.

Over the past ten years, small gas volumes (nitrogen, carbon dioxide) have been injected in shallow and sandy permeable layers to study the response of different surface and downhole hydrogeophysical monitoring strategies. At present, the site is equiped with an injection hole and several monitoring holes including either a set of hydrochemical sampling instruments or downhole electrical flutes. Other holes equiped with PVC tubing are available for time-lapse logging operations or cross-hole experiments.

State of the Art, uniqueness & specific advantages

SHAGAL provides is fully described and flexible environnement for shallow testing of new monitoring instruments and strategies.

Scientific Environment

Not applicable. The site might be used anytime, providing that early booking is organized.

Operating by

CNRS

Centre national de la recherche scientifique
France
STORAGE technologies:
Migration, Caprock/well integrity, Leakage mitigation/remediation, Reactivity/mineralisation, Leakage, Monitoring, Static modelling, Dynamic modelling, Pressure/injection
Research Fields:
Fluid dynamics, Chemistry/Geochemistry, Microbiology, Ecosystem, Geology/Geophysics, Monitoring, Modelling, Physical processes, Engineering, Thermodynamics

Location & Contacts

Location
Villeneuve-les-Maguelone, France
Contacts
Philippe A. Pezard
RICC Contacts - Secondary contact
Sébastien Dupraz

Facility Availability

Availability per year (in UA)
6 to 9 UA maximum.
Duration of a typical access (average) and number of external users expected for that access
1 to 3 UA.

Quality Control / Quality Assurance (QA)

Activities / tests / data are:
Controlled: ISO9001

Operational or other constraints

Specific risks:
N/A
Legal issues:
N/A

CCUS Projects

EU-Funded CCUS Projects
FP7
2009 – 2013
MUSTANG
FP7
PANACEA
FP7
TRUST
Other CCUS Projects

Selected Publications

Ground Water (pp. 12). doi: 10.1111/j.1745-6584.2012.01011.x (2013)
Integrated Onshore-Offshore Investigation of a Mediterranean Layered Coastal Aquifer
LOFI J., PEZARD P.A., BOUCHETTE F., RAYNAL O., SABATIER P., DENCHIK N., DEZILEAU L., CERTAIN R.
International Journal of Greenhouse Gas Control, 12/2015; DOI:10.1016/j.ijggc.2015.12.005 (2015)
Time-lapse downhole electrical resistivity monitoring of subsurface CO2 storage at the Maguelone shallow experimental site (Languedoc, France)
PEZARD P.A., DENCHIK N., LOFI J., PERROUD H., HENRY G., NEYENS D., LEVANNIER A., LUQUOT L.
Near-Surface Geophysics, EAGE, Athens (Greece). (2014)
Time-lapse VSP Monitoring of Shallow Gas Injection at the Maguelone Experimental Site (Languedoc, France).
PERROUD H., O. JAAFAR, P.A. PEZARD, J. LOFI
Near-Surface Geophysics, EAGE, Barcelona (Spain), Session 22, Paper A10. (2016)
Time-lapse Electrical Resistivity Monitoring of Subsurface CO2 Storage at the Maguelone Experimental Site (France).
DENCHIK N., P.A. PEZARD, H. PERROUD, J. LOFI, H. ABDOULGHAFOUR, D. NEYENS, G. HENRY
Intern. J. of Greenhouse Gas Control. 54, 200 - 210, doi:10.1016/j.ijggc.2016.09.006. (2016)
Numerical modelling of CO2 injection at small-scale field experimental site in Maguelone, France.
BASIRAT F., NIEMI A., FAGERLUND F., DENCHIK N., PEZARD P.A.