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Home › CATO-2 › Themes › SP3 Underground Storage, Monitoring and Verification › 3.7 Permanent geophysical monitoring
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3.7 Permanent geophysical monitoringMain objective
BackgroundSince electromagnetic methods are more sensitive to the fluids filling the pore space than to the rock matrix, they seem on forehand extremely suitable for monitoring CO2 storage (plume imaging, leakage detection). A better understanding of complex structures, where high-resolution seismic methods fail due to high velocity contrasts, may also be expected. It potentially provides crucial information on the first kilometre that can be used to improve the background model to improve seismic data processing and imaging of a deep seismic line.
The aim is to make a big step forward in accuracy of data analysis and imaging/inversion by recording multi-component near field data in a monitoring network with buried sensors and use the recently developed interferometric techniques for both active and passive data for data analysis, processing and inversion.
Feasibility study of a permanent Lofar-Geo monitoring networkAs described in the introduction, the Lofar-Geo project aims to install a permanent monitoring network, preferably onshore, over a CO2 storage site. Currently a semi-permanent buried monitoring network of seismic and EM sensors in combination with “sniffers” is envisaged. In this WP the feasibility and design of such a monitoring network for selected sites defined in CATO-2 will be investigated. Based on existing data of the site (geology, petro physical properties) the added value of the network will be demonstrated or not.Installation of a permanent Lofar-Geo monitoring network over a storage siteAfter site-selection it is expected, that a permanent monitoring network, preferably onshore, over a CO2 storage site will be installed. Where the Lofar-Geo project will take care of the practical installation, this WP aims to support the work by interpreting the (test)data. The network is split into a seismic part and an EM part.Feasibility study of a permanent Lofar-Geo monitoring networkAccess to existing reservoir simulation models, geological interpretations and property data bases for the selected sites.Installation of a permanent Lofar-Geo monitoring network over a storage siteResults of WP 4.1.4 (feasibility study) need to be taken into account. Please note, that this WP is divided into a seismic and an EM part in the tables SP4.2 to make a clear division in budgets.Workpackage managersMembers |
