EOS7CA Version 1.0: TOUGH2 Module for Gas Migration in Shallow Subsurface Porous Media Systems

Software · Fri Aug 28 00:00:00 EDT 2015

DOI:https://doi.org/10.11578/dc.20180928.2· OSTI ID:1475021 · Code ID:19220

Oldenburg, Curtis M ^[1]; Moridis, George J ^[1]; Reagan, Matthew T ^[1]

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1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

EOS7CA is a TOUGH2 module for mixtures of a non-condensible gas (NCG) and air (with or without a gas tracer), an aqueous phase, and water vapor. The user can select the NCG as being CO2, N2, or CH4. EOS7CA uses a cubic equation of state with a multiphase version of Darcy's Law to model flow and transport of gas and aqueous phase mixtures over a range of pressures and temperatures appropriate to shallow subsurface porous media systems. The limitation to shallow systems arises from the use of Henry's Law for gas solubility which is appropriate for low pressures but begins to over-predict solubility starting at pressures greater than approximately 1 MPa (10 bar). The components modeled in EOS7CA are water, brine, NCG, gas tracer, air, and optional heat.

• Short Name / Acronym: EOS7CA Version 1.0
• Site Accession Number: 2015-102
• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE

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  Primary Award/Contract Number:

  AC02-05CH11231
• DOE Contract Number: AC02-05CH11231
• Code ID: 19220
• OSTI ID: 1475021
• Country of Origin: United States