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| Titel |
Spatial and temporal characterization of CO2 storage sites using magnetotellurics |
| VerfasserIn |
J. Ledo, P. Queralt, A. Marcuello, E. Roca, M. Rubinat |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250022973
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| Zusammenfassung |
| Integration of different geophysical, geological and geochemical methods will play a key role
for the spatial and temporal characterization of underground CO2 storage sites. Among the
geophysical techniques the magnetotelluric method (MT) may help on both, site
characterization and monitoring of the CO2 plume, mainly on deep saline reservoirs. In this
work we present the characterization of a salt diapir in southern Spain using MT data. This
diaper does not satisfy the conditions to be a future reservoir due to the absence of a good
lithological seal, but can be use as a natural analog to determine the validity of different
geophysical methods. In total 34 MT sites were acquired along a 15 km profile. Once
the data has been analyzed, inverted and integrated with surface geological data a
simulated investigation for monitoring the CO2 has been carried out. In this simulation
the CO2 has been located at the base of the Jurassic to Turonnian carbonates and
marls increasing the resistivity of the model. Several tests varying the resistivity
and the amount of the CO2 as well as the number of MT sites used will be show. |
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