Abstract
The aim of the Géocarbone-Monitoring research project was the evaluation and testing, as far as possible, of the different monitoring methods that might be applied in the specific context of the Paris Basin. Their main objectives are to: detect and map CO<sub>2<sub/> in the reservoir rocks; detect and quantify possible leaks between the reservoir and the surface. The partners developed several thoughts and research concerning the various monitoring methods. This enabled drawing up a critical overview of existing methods and proposing leads for further work. At the end of the project, recommendations were made for the stakeholders of CO<sub>2<sub/> storage, i.e. the government departments regulating storage, decision-makers, and future site operators. In addition, a proposal was made for the general design and implementation of a monitoring programme of an injection test in the Paris Basin, within a depleted reservoir or a deep aquifer.
Highlights
Monitoring is an essential aspect of the geological storage of CO2, as we need real-time data on the evolution of a CO2 plume and on any potential leaks (IPCC, 2005)
A general outline was proposed for the design and implementation of a monitoring programme on a test site in the Paris Basin, whether in a depleted hydrocarbon reservoir or in a deep aquifer
The modelling developed for Géocarbone-Monitoring showed that with the selected model of electrical-resistivity distribution in the Paris Basin, the resistivity contrast between CO2 and brine was insufficient for creating a signal that can be detected at the surface
Summary
Monitoring is an essential aspect of the geological storage of CO2, as we need real-time data on the evolution of a CO2 plume and on any potential leaks (IPCC, 2005). A general outline was proposed for the design and implementation of a monitoring programme on a test site in the Paris Basin, whether in a depleted hydrocarbon reservoir or in a deep aquifer. These recommendations are a useful complement to the Annexes of the European Directive on CO2 storage, which concern risk management and monitoring
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