English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/92992
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Dynamics of convective dissolution from a migrating current of carbon dioxide

AutorHidalgo, Juan J.; MacMinn, Christopher W.; Juanes, Rubén
Palabras claveCO2 sequestration
Gravity current
Sharp interface model
Convective dissolution
Fecha de publicacióndic-2013
CitaciónAdvances in Water Resources 62(C): 511-519 (2013)
ResumenDuring geologic storage of carbon dioxide (CO2), trapping of the buoyant CO2 after injection is essential in order to minimize the risk of leakage into shallower formations through a fracture or abandoned well. Models for the subsurface behavior of the CO2 are useful for the design, implementation, and long-term monitoring of injection sites, but traditional reservoir-simulation tools are currently unable to resolve the impact of small-scale trapping processes on fluid flow at the scale of a geologic basin. Here, we study the impact of solubility trapping from convective dissolution on the up-dip migration of a buoyant gravity current in a sloping aquifer. To do so, we conduct high-resolution numerical simulations of the gravity current that forms from a pair of miscible analogue fluids. Our simulations fully resolve the dense, sinking fingers that drive the convective dissolution process. We analyze the dynamics of the dissolution flux along the moving CO2-brine interface, including its decay as dissolved buoyant fluid accumulates beneath the buoyant current. We show that the dynamics of the dissolution flux and the macroscopic features of the migrating current can be captured with an upscaled sharp-interface model. © 2013 Elsevier Ltd.
Versión del editorhttp://dx.doi.org/10.1016/j.advwatres.2013.06.013
Identificadoresdoi: 10.1016/j.advwatres.2013.06.013
issn: 0309-1708
Aparece en las colecciones: (IDAEA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
dymnamics_convective_Hidalgo.pdf3,12 MBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.