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Title: Assessment of the State-Of-The-Art of Numerical Simulation of Enhanced Geothermal Systems

The reservoir features of importance in the operation of enhanced geothermal systems are described first (Section 2). The report then reviews existing reservoir simulators developed for application to HDR reservoirs (Section 3), hydrothermal systems (Section 4), and nuclear waste isolation (Section 5), highlighting capabilities relevant to the evaluation and assessment of EGS. The report focuses on simulators that include some representation of flow in fractures, only mentioning other simulators, such as general-purpose programs or groundwater models (Section 6). Following these detailed descriptions, the report summarizes and comments on the simulators (Section 7), and recommends a course of action for further development (Section 8). The references are included in Section 9. Appendix A contains contractual information, including a description of the original and revised scope of work for this study. Appendix B presents comments on the draft report from DOE reviewer(s) and the replies of the authors to those comments. [DJE-2005]
Publication Date:
OSTI Identifier:
860611
Resource Type:
Technical Report
Research Org:
GeothermEx, Inc., Richmond, CA; Thunderhead Engineering Consultants, Manhattan, KS; Golder Associates, Redmond, WA
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; 12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; EVALUATION; FRACTURES; GEOTHERMAL SYSTEMS; HYDROTHERMAL SYSTEMS; RADIOACTIVE WASTES; SIMULATION; SIMULATORS; Geothermal Legacy