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CO2 migration and pressure evolution in deep saline aquifers.
- Source :
- International Journal of Greenhouse Gas Control; Sep2015, Vol. 40, p203-220, 18p
- Publication Year :
- 2015
-
Abstract
- In 2005, the IPPC Special report on carbon dioxide capture and storage (SRCCS) summarized the state of knowledge about CCS as an emerging technology for reducing CO 2 emissions to the atmosphere. At the time of writing, the emphasis of the SRCCS was on understanding the fate of injected CO 2 whereas less attention was paid to effects of pressure buildup associated with CO 2 injection. Since then, the CCS community has significantly improved the knowledge base and addressed many of the technical gaps mentioned in 2005. A large body of research has been devoted to identify and verify the main processes that control CO 2 migration, trapping, and containment in deep saline aquifers. Much work has also been conducted to better understand the magnitude and implications of reservoir pressure buildup in response to large CO 2 storage projects. The aim of this paper is to provide a summary and overview of the most relevant recent (since publication of the IPCC SRCCS) literature and findings in the areas of CO 2 migration and pressure evolution. The paper first summarizes recent findings related to CO 2 plume migration and trapping, based on analytical and numerical modeling studies as well as several field injection tests conducted to examine the fate of injected CO 2 in various subsurface settings. The paper then discusses pressure effects as a function of space and time, including the effects of confinement (boundary conditions), highlights possible unwanted pressure impacts such as pressure-driven leakage and geomechanical damage, analyzes potential capacity constraints, reviews current concepts for pressure management, and closes with a discussion about use of pressure signals for advanced monitoring. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 17505836
- Volume :
- 40
- Database :
- Supplemental Index
- Journal :
- International Journal of Greenhouse Gas Control
- Publication Type :
- Academic Journal
- Accession number :
- 109179498
- Full Text :
- https://doi.org/10.1016/j.ijggc.2015.03.022