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Title: A New Analytic-Adaptive Model for EGS Assessment, Development and Management Support

To increase understanding of the energy extraction capacity of Enhanced Geothermal System(s) (EGS), a numerical model development and application project is completed. The general objective of the project is to develop and apply a new, data-coupled Thermal-Hydrological-Mechanical-Chemical (T-H-M-C) model in which the four internal components can be freely selected from existing simulation software without merging and cross-combining a diverse set of computational codes. Eight tasks are completed during the project period. The results are reported in five publications, an MS thesis, twelve quarterly, and two annual reports to DOE. Two US patents have also been issued during the project period, with one patent application originated prior to the start of the project. The “Multiphase Physical Transport Modeling Method and Modeling System” (U.S. Patent 8,396,693 B2, 2013), a key element in the GHE sub-model solution, is successfully used for EGS studies. The “Geothermal Energy Extraction System and Method" invention (U.S. Patent 8,430,166 B2, 2013) originates from the time of project performance, describing a new fluid flow control solution. The new, coupled T-H-M-C numerical model will help analyzing and designing new, efficient EGS systems.
Publication Date:
OSTI Identifier:
Report Number(s):
Final Report
DOE Contract Number:
Resource Type:
Technical Report
Research Org:
University of Nevada, Reno
Sponsoring Org:
(EE-2B); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Program (EE-2C)
Country of Publication:
United States
15 GEOTHERMAL ENERGY Numerical Model, EGS reservoir, Thermal, Hydrology, Mechanical, Chemical Transport processes, Geothermal