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Title: Simplified Physics Based Models Research Topical Report on Task #2

Abstract

We present a simplified-physics based approach, where only the most important physical processes are modeled, to develop and validate simplified predictive models of CO2 sequestration in deep saline formation. The system of interest is a single vertical well injecting supercritical CO2 into a 2-D layered reservoir-caprock system with variable layer permeabilities. We use a set of well-designed full-physics compositional simulations to understand key processes and parameters affecting pressure propagation and buoyant plume migration. Based on these simulations, we have developed correlations for dimensionless injectivity as a function of the slope of fractional-flow curve, variance of layer permeability values, and the nature of vertical permeability arrangement. The same variables, along with a modified gravity number, can be used to develop a correlation for the total storage efficiency within the CO2 plume footprint. Similar correlations are also developed to predict the average pressure within the injection reservoir, and the pressure buildup within the caprock.

Authors:
;
Publication Date:
Research Org.:
Battelle Memorial Institute, Columbus, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1167492
DOE Contract Number:  
FE0009051
Resource Type:
Other
Country of Publication:
United States
Language:
English

Citation Formats

Mishra, Srikanta, and Ganesh, Priya. Simplified Physics Based Models Research Topical Report on Task #2. United States: N. p., 2014. Web.
Mishra, Srikanta, & Ganesh, Priya. Simplified Physics Based Models Research Topical Report on Task #2. United States.
Mishra, Srikanta, and Ganesh, Priya. 2014. "Simplified Physics Based Models Research Topical Report on Task #2". United States. https://www.osti.gov/servlets/purl/1167492.
@article{osti_1167492,
title = {Simplified Physics Based Models Research Topical Report on Task #2},
author = {Mishra, Srikanta and Ganesh, Priya},
abstractNote = {We present a simplified-physics based approach, where only the most important physical processes are modeled, to develop and validate simplified predictive models of CO2 sequestration in deep saline formation. The system of interest is a single vertical well injecting supercritical CO2 into a 2-D layered reservoir-caprock system with variable layer permeabilities. We use a set of well-designed full-physics compositional simulations to understand key processes and parameters affecting pressure propagation and buoyant plume migration. Based on these simulations, we have developed correlations for dimensionless injectivity as a function of the slope of fractional-flow curve, variance of layer permeability values, and the nature of vertical permeability arrangement. The same variables, along with a modified gravity number, can be used to develop a correlation for the total storage efficiency within the CO2 plume footprint. Similar correlations are also developed to predict the average pressure within the injection reservoir, and the pressure buildup within the caprock.},
doi = {},
url = {https://www.osti.gov/biblio/1167492}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Oct 31 00:00:00 EDT 2014},
month = {Fri Oct 31 00:00:00 EDT 2014}
}