A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers

Carbon Dioxide (CO2) sequestration into geologic formations is a means of mitigating greenhouse effect. In this work we present a new numerical simulation technique to model and monitor CO2 sequestration in aquifers. For that purpose we integrate numerical simulators of CO 2-brine flow and seismic w...

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Autores principales: Santos, Juan Enrique, Savioli, Gabriela B., Carcione, José M., Gei, D.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Exactas
Recarga de Acuíferos
Dióxido de Carbono
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85605
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85605
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Recarga de Acuíferos
Dióxido de Carbono
spellingShingle Ciencias Exactas
Recarga de Acuíferos
Dióxido de Carbono
Santos, Juan Enrique
Savioli, Gabriela B.
Carcione, José M.
Gei, D.
A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
topic_facet Ciencias Exactas
Recarga de Acuíferos
Dióxido de Carbono
description Carbon Dioxide (CO2) sequestration into geologic formations is a means of mitigating greenhouse effect. In this work we present a new numerical simulation technique to model and monitor CO2 sequestration in aquifers. For that purpose we integrate numerical simulators of CO 2-brine flow and seismic wave propagation (time-lapse seismics). The simultaneous flow of brine and CO2 is modeled applying the Black-Oil formulation for two phase flow in porous media, which uses the Pressure-Volume-Temperature (PVT) behavior as a simplified thermodynamic model. Seismic wave propagation uses a simulator based on a space-frequency domain formulation of the viscoelastic wave equation. In this formulation, the complex and frequency dependent coefficients represent the attenuation and dispersion effect suffered by seismic waves travelling in fluid-saturated heterogeneous porous formations. The spatial discretization is achieved employing a nonconforming finite element space to represent the displacement vector. Numerical examples of CO2 injection and time-lapse seismics in the Utsira formation at the Sleipner field are analyzed. The Utsira formation is represented using a new petrophysical model that allows a realistic inclusion of shale seals and fractures. The results of the simulations show the capability of the proposed methodology to monitor the spatial distribution of CO 2 after injection.
format Articulo
Articulo
author Santos, Juan Enrique
Savioli, Gabriela B.
Carcione, José M.
Gei, D.
author_facet Santos, Juan Enrique
Savioli, Gabriela B.
Carcione, José M.
Gei, D.
author_sort Santos, Juan Enrique
title A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
title_short A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
title_full A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
title_fullStr A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
title_full_unstemmed A numerical procedure to model and monitor CO<SUB>2</SUB> sequestration in aquifers
title_sort numerical procedure to model and monitor co<sub>2</sub> sequestration in aquifers
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85605
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