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Title: Development of Models to Simulate Tracer Behavior in Enhanced Geothermal Systems

A recent report found that power and heat produced from engineered (or enhanced) geothermal systems (EGSs) could have a major impact on the United States while incurring minimal environmental impacts. EGS resources differ from high-grade hydrothermal resources in that they lack sufficient temperature distributions, permeability/porosity, fluid saturation, or recharge of reservoir fluids. Therefore, quantitative characterization of temperature distributions and the surface area available for heat transfer in EGS is necessary for commercial development of geothermal energy. The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate this characterization. Modeling capabilities are being developed as part of this project to support laboratory and field testing to characterize engineered geothermal systems in single- and multi-well tests using tracers. The objective of this report is to describe the simulation plan and the status of model development for simulating tracer tests for characterizing EGS.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
992377
Report Number(s):
PNNL-19523
EB4005020; TRN: US201022%%424
DOE Contract Number:
AC05-76RL01830
Resource Type:
Technical Report
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; ENVIRONMENTAL IMPACTS; GEOTHERMAL ENERGY; GEOTHERMAL SYSTEMS; HEAT TRANSFER; RESERVOIR FLUIDS; SATURATION; SIMULATION; SURFACE AREA; TEMPERATURE DISTRIBUTION; TESTING