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in creator/contributor: "Finsterle, S."  
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A TOUGH2 equation-of-state module for the simulation of two-phase flow of air, water, and a miscible gelling liquid

Description: The injection of grout into the subsurface can be used to encapsulate contaminated regions of an aquifer, or to form underground barriers for the isolation of contaminant sources and to prevent the spreading of existing plumes. This requires identifying grouts, or barrier fluids, which when injected into the subsurface exhibit a large increase in viscosity and eventually solidify, sealing the permeable zones in the aquifer. Simulation and modeling analysis are indispensable tools for designing … more
Date: May 1, 1994
Creator: Finsterle, S.; Moridis, G. J. & Pruess, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Percolation-theory and fuzzy rule-based probability estimation of fault leakage at geologic carbon sequestration sites

Description: Leakage of CO{sub 2} and displaced brine from geologic carbon sequestration (GCS) sites into potable groundwater or to the near-surface environment is a primary concern for safety and effectiveness of GCS. The focus of this study is on the estimation of the probability of CO{sub 2} leakage along conduits such as faults and fractures. This probability is controlled by (1) the probability that the CO{sub 2} plume encounters a conductive fault that could serve as a conduit for CO{sub 2} to leak th… more
Date: May 1, 2009
Creator: Zhang, Y.; Oldenburg, C.M. & Finsterle, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Inverse modeling as a step in the calibration of the LBL-USGS site-scale model of Yucca Mountain

Description: Calibration of the LBL-USGS site-scale model of Yucca Mountain is initiated. Inverse modeling techniques are used to match the results of simplified submodels to the observed pressure, saturation, and temperature data. Hydrologic and thermal parameters are determined and compared to the values obtained from laboratory measurements and conventional field test analysis.
Date: May 1, 1995
Creator: Finsterle, S.; Bodvarsson, G.S. & Chen, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The use of TOUGH2/iTOUGH2 in support of the Yucca MountainProject: Successes and limitations

Description: The TOUGH2/iTOUGH2 family of codes is being used to analyze various processes and phenomena in the unsaturated zone at the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. Various models have been developed that help quantify properties of the volcanic tuffs, water flow, seepage into drifts, and thermally driven coupled processes arising from the heat emitted by radioactive waste. These models are based on various assumptions and approximations that are generally accepted… more
Date: May 12, 2003
Creator: Bodvarsson, G. S.; Birkholzer, J. T.; Finsterle, S.; Liu, H. H.; Rutqvist, J. & Wu, Y. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Inverse modeling of a multistep outflow experiment fordetermining hysteretic hydraulic properties

Description: A new, closed-form hysteretic model of the capillary pressure-saturation and relative permeability-saturation relationship has been implemented into ITOUGH2. The hysteretic capillary pressure function is based on the van Genuchten model, with a modified version of the dependent domain model of Mualem to describe the scanning curves. Hysteresis in the relative permeability relations is considered to be mainly a result of nonwetting fluid entrap- ment. The hysteresis model was used in combination… more
Date: May 1, 1998
Creator: Faybishenko, B.; Finsterle, S. & Sonnenborg, T.O.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analysis of boiling experiment using inverse modeling

Description: Numerical predictions of geothermal reservoir behavior strongly depend on the assumed steam-water relative permeabilities, which are difficult and time-consuming to measure in the laboratory. This paper describes the esti- mation of the parameters of the relative per- meability and capillary pressure functions by automatically matching simulation results to data from a transient boiling experiment performed on a Berea sandstone. A sensitivity analysis reveals the strong dependence of the observ… more
Date: May 1, 1998
Creator: Finsterle, S.; Guerrero, M. & Satik, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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