Deep Direct-Use Feasibility Study Numerical Modeling and Uncertainty Analysis using iTOUGH2 for West Virginia University

Description

To reduce the geothermal exploration risk, a feasibility study is performed for a deep direct-use system proposed at the West Virginia University (WVU) Morgantown campus. This study applies numerical simulations to investigate reservoir impedance and thermal production. Because of the great depth of the geothermal reservoir, few data are available to characterize reservoir features and properties. As a result, the study focuses on the following three aspects: 1. model choice for predicting reservoir impedance and thermal breakthrough: after investigating three potential models (one single permeability model and two dual permeability models) for flow through fractured rock, it is decided to use single permeability model for further analysis; 2. well placement (horizontal vs. vertical) options: horizontal well placement seems to be more robust to heterogeneity and the impedance is more acceptable; 3. Prediction uncertainty: the most influential parameters are identified using a First-Order-Second-Moment uncertainty propagation analysis, and the uncertain range of the model predictions is estimated by performing a Monte Carlo simulation. Heterogeneity has a large impact on the perdition, therefore, is considered in the predictive model and uncertainty analysis. The numerical model results and uncertainty analysis are used for economic analysis. The dataset submitted here support the described study. Manuscript is submitted to Geothermics, will be linked once paper is accepted.

Resources

Name Format Description Link
57 Contains input/output used in the initial temperature uncertainty analysis described in the manuscript and final report. Results are used in generating Figure 9 of the manuscript. iTOUGH2 input files: het2i, het, het2 and het3 iTOUGH2 outputs: het2i.tec from each folder for comparison. https://gdr.openei.org/files/1197/BaseCase_run_F9.zip
57 Contains input/output used in the initial temperature uncertainty analysis described in the manuscript and final report. Results are used in generating Figure 9 of the manuscript. HighG represent high geothermal gradient case iTOUGH2 input files: het2i, het, het2 and het3 iTOUGH2 outputs: het2i.tec from each folder for comparison. https://gdr.openei.org/files/1197/HighG_run_F9.zip
57 Contains input/output used in the initial temperature uncertainty analysis described in the manuscript and final report. Results are used in generating Figure 9 of the manuscript. LowG represents low geothermal gradient case. iTOUGH2 input files: het2i, het, het2 and het3 iTOUGH2 outputs: het2i.tec from each folder for comparison. https://gdr.openei.org/files/1197/LowG_run_F9.zip
10 The purpose of this document is to describe the contents of information used in the numerical model study of the potential deep direct use geothermal on the West Virginia University Campus-Morgantown, WV, and data used in the model uncertainty analysis. https://gdr.openei.org/files/1197/Numerical%20Modeling%20and%20Uncertainty%20Analysis%20for%20the%20Potential%20DDU%20Geothermal%20on%20the%20WVU%20Campus-Morgantown%20WV.docx
57 Contains input files used in the Monte Carlo simulation analysis described in the manuscript and final report. Input files: heti_all, het https://gdr.openei.org/files/1197/MC_allPara2_input.zip
57 Contains the input/output files for the dual permeability with vertical well layout models described in the manuscript and final report. Part of Figure 2 (one of the two lines for dual K) the manuscript and final report is produced from the output data in this set. ITOUGH2 input files: DDUi and DDU (DualK1.zip). iTOUGH2 output files: DDUi.tec for time series (e.g. production temperature over time). Other *.tec are pressure temperature for the entire model domain at different times. https://gdr.openei.org/files/1197/DualK1.zip
57 Contains the input/output files of the Mtest case with vertical well layout described in the manuscript and final report. It also contains the result data files for Figures 4 and 5 in the manuscript. iTOUGH2 input files: DDUi and DDU3 iTOUGH2 outputs: *.tec. ResultPlotting folder includes the files for plotting Figures 4 and 5. https://gdr.openei.org/files/1197/Mtest_Figure4_5.zip
57 Contains input/output files for the FOSM analysis described in input/output files for the single K model with horizontal well layout described in the manuscript and final report. The results are summarized in Table 3. iTOUGH input files: fosm3 and het iTOUGH2 outputs: *.tec for time series https://gdr.openei.org/files/1197/Fosm_horizontal.zip
57 Contains input/output files for the base case single permeability with vertical well layout model analysis. Figure 3 and part of Figure 2 (the plot for single K) of the manuscript and final report is produced from the output data in this set. This set also contains the post-processing python file to extract data in 2D for plotting purpose. iTOUGH2 input files: DDU0i, DDU0 iTOUGH2 Output files: DDU0_eleme*.tec Python code to extract 2D: Get2dSlices.py Plotting files: *20y*, *40y*, and *60y*, 2d slice plot for 20, 40 and 60yrs. https://gdr.openei.org/files/1197/SingleK_Figure3.zip
57 Contains output files used in the Monte Carlo simulation analysis. Results are used in generating Figure 8 in the manuscript and final report. iTOUGH2 direct output file is heti_all.out. The middle part is extracted into OUTPUT file. Then a python code “stat.py” is used to summarize results into “plot.dat” for plotting. https://gdr.openei.org/files/1197/MC_allPara2_output.zip
57 Contains the input/output files for the dual permeability with vertical well layout models described in the manuscript and final report. Part of Figure 2 (one of the two lines for dual K) the manuscript and final report is produced from the output data in this set. ITOUGH2 input files: DDUi and DDU2 (DualK2.zip). iTOUGH2 output files: DDUi.tec for time series (e.g. production temperature over time). Other *.tec are pressure temperature for the entire model domain at different times. https://gdr.openei.org/files/1197/Dualk2.zip
57 Contains the input/output files for the single K model with horizontal well layout described in the manuscript and final report. The results from this set of simulation appeared in the final report and manuscript Figure 6 and part of Figure 7 in the manuscript. iTOUGH2 input files: DDU0i, DDU1 iTOUGH2 output files: *.tec. DDU0i.tec contains temperature over time https://gdr.openei.org/files/1197/Figure6_7.zip
57 Contains the input/output files for the single K heterogeneous model with horizontal well layout described in the manuscript and final report. The results are used to produce Figure 7. iTOUGH2 inputs: Het2i and het2 iTOUGH2 outputs: perm.dat – permeability generated and used in permeability plot; het2i.tec contains temperature/pressure at injection/production well over time; other *.tec files contain pressure/temperature of the entire model at different times. Plot folder contains 2D slice extraction code (*.py) and 2D slice data files extracted. https://gdr.openei.org/files/1197/Figure7.zip

Tags

  • geothermal-exploration-risk
  • deep-direct-use
  • geothermics
  • itough2
  • first-order-second-moment-uncertainty-propagation-analysis
  • lbnl
  • modeling
  • feasibility
  • reservoir-flow-model
  • exploration-risk
  • direct-use
  • wvu
  • paper
  • analysis
  • matrix
  • west-virginia-university
  • monte-carlo
  • permeability-models
  • thermal-breakthrough
  • economic
  • morgantown
  • flow
  • tuscarora-sandstone
  • flow-model
  • permeability
  • reservoir-impedance
  • fracture
  • tuscarora
  • uncertainty-analysis
  • ddu
  • resource-potential
  • thermal-production
  • uncertainty
  • simulation
  • economic-analysis
  • geothermal
  • numerical-modeling

Topics

Categories