TOURGHREACT: A Simulation Program for Non-isothermal MultiphaseReactive Geochemical Transport in Variably Saturated GeologicMedia
TOUGHREACT is a numerical simulation program for chemically reactive non-isothermal flows of multiphase fluids in porous and fractured media. The program was written in Fortran 77 and developed by introducing reactive geochemistry into the multiphase fluid and heat flow simulator TOUGH2. A variety of subsurface thermo-physical-chemical processes are considered under a wide range of conditions of pressure, temperature, water saturation, ionic strength, and pH and Eh. Interactions between mineral assemblages and fluids can occur under local equilibrium or kinetic rates. The gas phase can be chemically active. Precipitation and dissolution reactions can change formation porosity and permeability. The program can be applied to many geologic systems and environmental problems, including geothermal systems, diagenetic and weathering processes, subsurface waste disposal, acid mine drainage remediation, contaminant transport, and groundwater quality. Here we present two examples to illustrate applicability of the program: (1) injectivity effects of mineral scaling in a fractured geothermal reservoir and (2) CO2 disposal in a deep saline aquifer.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE. Assistant Secretary for Energy Efficiency andRenewable Energy. Office of the Solar and Energy TechnologyProgram
- DOE Contract Number:
- DE-AC02-05CH11231
- OSTI ID:
- 877615
- Report Number(s):
- LBNL-56740; R&D Project: G31902; BnR: EB4005020; TRN: US200608%%517
- Journal Information:
- Computer & Geosciences, Vol. 32, Issue 2; Related Information: Journal Publication Date: January 2006
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
58 GEOSCIENCES
ACID MINE DRAINAGE
DISSOLUTION
FORTRAN
GEOCHEMISTRY
GEOTHERMAL SYSTEMS
HEAT FLUX
KINETICS
PERMEABILITY
POROSITY
PRECIPITATION
SIMULATION
SIMULATORS
TRANSPORT
WASTE DISPOSAL
WATER SATURATION
WEATHERING
Geothermal Legacy
Reactive fluid flow Geochemical transport TOUGHREACTHydrothermal systems Mineral scaling Clay swelling Injectivityenhancement CO2 geologic sequestration Saline aquifer