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Title: Final Report: Development of a Chemical Model to Predict the Interactions between Supercritical CO2, Fluid and Rock in EGS Reservoirs

Abstract

This report summarizes development of a coupled-process reservoir model for simulating enhanced geothermal systems (EGS) that utilize supercritical carbon dioxide as a working fluid. Specifically, the project team developed an advanced chemical kinetic model for evaluating important processes in EGS reservoirs, such as mineral precipitation and dissolution at elevated temperature and pressure, and for evaluating potential impacts on EGS surface facilities by related chemical processes. We assembled a new database for better-calibrated simulation of water/brine/ rock/CO2 interactions in EGS reservoirs. This database utilizes existing kinetic and other chemical data, and we updated those data to reflect corrections for elevated temperature and pressure conditions of EGS reservoirs.

Authors:
 [1];  [1]
  1. University of Utah
Publication Date:
Research Org.:
University of Utah
Sponsoring Org.:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
Contributing Org.:
University of Utah, University of Wyoming, Los Alamos National Laboratory, Idaho National Laboratory, Greenfire Energy, AltaRock Energy
OSTI Identifier:
1157589
Report Number(s):
DOE-UU-0002766
DOE Contract Number:  
EE0002766
Resource Type:
Other
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; Geothermal; Enhanced Geothermal Systems; Reactive Transport; Carbon Dioxide EGS

Citation Formats

McPherson, Brian J., and Pan, Feng. Final Report: Development of a Chemical Model to Predict the Interactions between Supercritical CO2, Fluid and Rock in EGS Reservoirs. United States: N. p., 2014. Web.
McPherson, Brian J., & Pan, Feng. Final Report: Development of a Chemical Model to Predict the Interactions between Supercritical CO2, Fluid and Rock in EGS Reservoirs. United States.
McPherson, Brian J., and Pan, Feng. Wed . "Final Report: Development of a Chemical Model to Predict the Interactions between Supercritical CO2, Fluid and Rock in EGS Reservoirs". United States. https://www.osti.gov/servlets/purl/1157589.
@article{osti_1157589,
title = {Final Report: Development of a Chemical Model to Predict the Interactions between Supercritical CO2, Fluid and Rock in EGS Reservoirs},
author = {McPherson, Brian J. and Pan, Feng},
abstractNote = {This report summarizes development of a coupled-process reservoir model for simulating enhanced geothermal systems (EGS) that utilize supercritical carbon dioxide as a working fluid. Specifically, the project team developed an advanced chemical kinetic model for evaluating important processes in EGS reservoirs, such as mineral precipitation and dissolution at elevated temperature and pressure, and for evaluating potential impacts on EGS surface facilities by related chemical processes. We assembled a new database for better-calibrated simulation of water/brine/ rock/CO2 interactions in EGS reservoirs. This database utilizes existing kinetic and other chemical data, and we updated those data to reflect corrections for elevated temperature and pressure conditions of EGS reservoirs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {9}
}