Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field

In this work we analyze how patchy distributions of CO<SUB>2</SUB> and brine within sand reservoirs may lead to significant attenuation and velocity dispersion effects, which in turn may have a profound impact on surface seismic data. The ultimate goal of this paper is to contribute to t...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Rubino, Jorge Germán, Velis, Danilo Rubén, Sacchi, Mauricio D.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Astronómicas
Dióxido de Carbono
CO2
seismic monitoring
velocity dispersion
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84110
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84110
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Dióxido de Carbono
CO2
seismic monitoring
velocity dispersion
spellingShingle Ciencias Astronómicas
Dióxido de Carbono
CO2
seismic monitoring
velocity dispersion
Rubino, Jorge Germán
Velis, Danilo Rubén
Sacchi, Mauricio D.
Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
topic_facet Ciencias Astronómicas
Dióxido de Carbono
CO2
seismic monitoring
velocity dispersion
description In this work we analyze how patchy distributions of CO<SUB>2</SUB> and brine within sand reservoirs may lead to significant attenuation and velocity dispersion effects, which in turn may have a profound impact on surface seismic data. The ultimate goal of this paper is to contribute to the understanding of these processes within the framework of the seismic monitoring of CO<SUB>2</SUB> sequestration, a key strategy to mitigate global warming. We first carry out a Monte Carlo analysis to study the statistical behavior of attenuation and velocity dispersion of compressional waves traveling through rocks with properties similar to those at the Utsira Sand, Sleipner field, containing quasi-fractal patchy distributions of CO<SUB>2</SUB> and brine. These results show that the mean patch size and CO<SUB>2</SUB> saturation play key roles in the observed wave-induced fluid flow effects. The latter can be remarkably important when CO<SUB>2</SUB> concentrations are low and mean patch sizes are relatively large. To analyze these effects on the corresponding surface seismic data, we perform numerical simulations of wave propagation considering reservoir models and CO<SUB>2</SUB> accumulation patterns similar to the CO<SUB>2</SUB> injection site in the Sleipner field. These numerical experiments suggest that wave-induced fluid flow effects may produce changes in the reservoir's seismic response, modifying significantly the main seismic attributes usually employed in the characterization of these environments. Consequently, the determination of the nature of the fluid distributions as well as the proper modeling of the seismic data constitute important aspects that should not be ignored in the seismic monitoring of CO<SUB>2</SUB> sequestration problems.
format Articulo
Articulo
author Rubino, Jorge Germán
Velis, Danilo Rubén
Sacchi, Mauricio D.
author_facet Rubino, Jorge Germán
Velis, Danilo Rubén
Sacchi, Mauricio D.
author_sort Rubino, Jorge Germán
title Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
title_short Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
title_full Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
title_fullStr Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
title_full_unstemmed Numerical analysis of wave-induced fluid flow effects on seismic data: Application to monitoring of CO<SUB>2</SUB> storage at the Sleipner field
title_sort numerical analysis of wave-induced fluid flow effects on seismic data: application to monitoring of co<sub>2</sub> storage at the sleipner field
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/84110
work_keys_str_mv AT rubinojorgegerman numericalanalysisofwaveinducedfluidfloweffectsonseismicdataapplicationtomonitoringofcosub2substorageatthesleipnerfield
AT velisdaniloruben numericalanalysisofwaveinducedfluidfloweffectsonseismicdataapplicationtomonitoringofcosub2substorageatthesleipnerfield
AT sacchimauriciod numericalanalysisofwaveinducedfluidfloweffectsonseismicdataapplicationtomonitoringofcosub2substorageatthesleipnerfield
bdutipo_str Repositorios
_version_ 1764820488386772996

Ejemplares similares