Deep Direct-Use Feasibility Study Numerical Modeling and Uncertainty Analysis using iTOUGH2 for West Virginia University Numerical Modeling and Uncertainty Analysis for the Potential DDU Geothermal on the WVU Campus-Morgantown WV.docx

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. 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.

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Citation Date 2019-12-20T00:00:00-07:00

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Original ID f0000012-58cc-4372-a567-000000001197
Index Date 2020-01-27T10:04:20-07:00
Original Format ISO-USGIN
Original Version 1.2


Name Nagasree Garapati
Position primary contact
Organization West Virginia University

Geographic Extent

North Bound 40.014367950021
South Bound 39.019400207267
East Bound -78.913387109375
West Bound -81.06660625