Geosequestration of CO2 requires guided transport to and reliable quantification of the storage capacity of geologic formations as well as safety assessment to ensure permanent retention of the injected fluid. We present a workflow based on the analysis of well logs, experimental insights, and reservoir simulation to better map CO2 saturation distribution from time-lapse seismic data. CO2 saturation maps are typically derived from 4D seismic data using rock physics models to assess fluid saturation and pressure effects. We present here a combination of our rock physics understanding to guide reservoir flow simulations. We find that in addition to fluid saturation changes, fluid reactions with the injected CO2 might better explain 4D seismic amplitude change maps.
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SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy
September 26–October 1, 2021
Denver, Colorado, USA and online
Reservoir analysis of a CO2 sequestration site: Experiment-guided field scale modeling
Similoluwa Oduwole;
Similoluwa Oduwole
Center for Rock and Fluid Multiphysics, Colorado School of Mines
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Luis E. Zerpa;
Luis E. Zerpa
Center for Rock and Fluid Multiphysics, Colorado School of Mines
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Mathias Pohl;
Mathias Pohl
Center for Rock and Fluid Multiphysics, Colorado School of Mines
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Jyoti Behura;
Jyoti Behura
Center for Rock and Fluid Multiphysics, Colorado School of Mines
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Manika Prasad
Manika Prasad
Center for Rock and Fluid Multiphysics, Colorado School of Mines
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Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, Denver, Colorado, USA and online, September 2021.
Paper Number:
SEG-2021-3594722
Published:
October 30 2021
Citation
Oduwole, Similoluwa, Zerpa, Luis E., Pohl, Mathias, Behura, Jyoti, and Manika Prasad. "Reservoir analysis of a CO2 sequestration site: Experiment-guided field scale modeling." Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, Denver, Colorado, USA and online, September 2021. doi: https://doi.org/10.1190/segam2021-3594722.1
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