ECO2N - A New TOUGH2 Fluid Property Module for Studies of CO2Storage in Saline Aquifers

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ECO2N is a fluid property module for the TOUGH2 simulator (Version 2.0) that was designed for applications to geologic storage of CO{sub 2} in saline aquifers. It includes a comprehensive description of the thermodynamics and thermophysical properties of H{sub 2}O-NaCl-CO{sub 2} mixtures, that reproduces fluid properties largely within experimental error for the temperature, pressure and salinity conditions of interest(10 C {le} T {le} 110 C; P {le} 600 bar; salinity up to full halite saturation). Flow processes can be modeled isothermally or non-isothermally, and phase conditions represented may include a single (aqueous or CO{sub 2}-rich) phase, as well as two-phase ... continued below

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Pruess, Karsten & Spycher, Nicholas April 17, 2006.

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Description

ECO2N is a fluid property module for the TOUGH2 simulator (Version 2.0) that was designed for applications to geologic storage of CO{sub 2} in saline aquifers. It includes a comprehensive description of the thermodynamics and thermophysical properties of H{sub 2}O-NaCl-CO{sub 2} mixtures, that reproduces fluid properties largely within experimental error for the temperature, pressure and salinity conditions of interest(10 C {le} T {le} 110 C; P {le} 600 bar; salinity up to full halite saturation). Flow processes can be modeled isothermally or non-isothermally, and phase conditions represented may include a single (aqueous or CO{sub 2}-rich) phase, as well as two-phase mixtures. Fluid phases may appear or disappear in the course of a simulation, and solid salt may precipitate or dissolve. ECO2N can model super- as well as sub-critical conditions, but it does not make a distinction between liquid and gaseous CO{sub 2}. This paper highlights significant features of ECO2N, and presents illustrative applications.

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  • TOUGH Symposium 2006, Berkeley, CA, 15-17 May2006

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  • Report No.: LBNL--60072
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 889809
  • Archival Resource Key: ark:/67531/metadc874162

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  • April 17, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 29, 2016, 2:26 p.m.

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Pruess, Karsten & Spycher, Nicholas. ECO2N - A New TOUGH2 Fluid Property Module for Studies of CO2Storage in Saline Aquifers, article, April 17, 2006; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc874162/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.