| Autor: |
Thomas Streil, Stefan Schlömer, Peter Dietrich, Alexander Lübben, Claudia Schütze, Ulrich Serfling, Carsten Leven, Andreas Schuck, Gunnar Horak, Viktoria Engnath, Ingo Möller, Michael Nierychlo, Karin Bräuer, Arno Simon, Michael Gisi, U. Sauer |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
Geological Storage of CO2 – Long Term Security Aspects ISBN: 9783319139296 |
| DOI: |
10.1007/978-3-319-13930-2_2 |
| Popis: |
The reliable detection and assessment of potential CO2 leakages from storage formations require the application of assurance monitoring tools at different spatial scales. Such tools also play an important role in helping to establish a risk assessment strategy at carbon dioxide capture and storage (CCS) facilities. Within the framework of the MONACO project (“Monitoring approach for geological CO2 storage sites using a hierarchical observation concept”), an integrative hierarchical assurance monitoring concept was developed and validated with the aim of establishing a modular observation strategy including investigations in the shallow subsurface, at ground surface level, and in the atmosphere. Numerous methods and technologies from different disciplines (such as chemistry, hydrogeology, meteorology, and geophysics) were either combined or used complementarily to one another, with results subsequently being jointly interpreted. Patterns of atmospheric CO2 distributions in terms of leakage detection can be observed on large scales with the help of infrared spectroscopy or micrometeorological methods, which aim to identify zones with unexpected or anomalous atmospheric CO2 concentrations. On the meso-scale, exchange processes between ground surface level and subsurface structures need to be localized using geophysical methods and soil gas surveys. Subsequently, the resulting images and maps can be used for selecting profiles for detailed in situ soil gas and geophysical monitoring, which helps to constrain the extent of leakages and allows us to understand controlling features of the observable fluid flow patterns. The tools utilized were tested at several natural and industrial analogues with various CO2 sources. A comprehensive validation of the opportunities and limitations of all applied method combinations is given and it shows that large spatial areas need to be consistently covered in sufficient spatial and temporal resolutions. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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