Carbon dioxide dissolution and convective flow in anticline reservoir
(Sprache: Englisch)
It is a requirement for the implementation of the CO2 - geostorage technology that the long-term fate of injected CO2 into the subsurface is understood. Dissolution trapping is known as a long-term process that able to reduce the leakage risk of the gas...
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It is a requirement for the implementation of the CO2 - geostorage technology that the long-term fate of injected CO2 into the subsurface is understood. Dissolution trapping is known as a long-term process that able to reduce the leakage risk of the gas phase of CO2 from a reservoir. This study, therefore, examines the influence of convective flow driven by density differences on the dissolution of gaseous CO2 into the highly saline formation fluid. The characteristic of a potential anticline reservoir located in the North German sedimentary basin is used as a case study. Numerical scenario simulations conducted for the 2D cross section of the reservoir by accounting the dissolution of CO2 and further by accounting the geochemical reactions (i.e. mineral dissolution/precipitation) effects. It is observed that in both scenarios the density of formation fluid increases and results convective flow. In the first scenario, the amounts of CO2 dissolved in the reservoir were doubled dueto convective mixing process. When both dissolution and geochemical reaction effects are considered, the amount of dissolved CO2 increased by 116 % compared to the model results without free-convection.
Autoren-Porträt von Addisalem Bitew Mitiku
Mitiku, Addisalem BitewDr. Addisalem has a background in Civil engineering and completed her MSC in Hydroinformatics and water Resource management. Thereafter, she accomplished her Ph.D. in Geohydromodelling. Her areas of research include hydroinformatics, assessment of reservoir effects, hydrogeology, impacts of climate change, geo-energy storage, and related field.
Bibliographische Angaben
- Autor: Addisalem Bitew Mitiku
- 2019, 52 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: LAP Lambert Academic Publishing
- ISBN-10: 6139477018
- ISBN-13: 9786139477012
Sprache:
Englisch
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