Using Thermally Degrading, Partitioning and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs Geothermal Lab Call Project

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Last modified on July 22, 2011.

Project Title Using Thermally Degrading, Partitioning and Nonreactive Tracers to Determine Temperature Distribution and Fracture/Heat Transfer Surface Area in Geothermal Reservoirs
Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies
Project Type / Topic 2 Tracers and Tracer Interpretation

Project Description The goal of this project is to provide integrated tracer and tracer interpretation tools to facilitate this characterization. To achieve this goal, the project team will develop and implement:


- Suites of tracers consisting of compounds with different chemical and physical properties that can be injected into wells and will interact in different and measurable ways with the fractured rock matrix.
- Single and interwell test designs and corresponding interpretation methods to extract the temperature distribution and surface area information from differences in the tracer concentration-vs.-time histories (breakthrough curves).

The target tracer suite(s) will include compounds that thermally degrade over a specified range of temperatures, partitioning/adsorbing tracers that have a variety of interaction characteristics with rock surfaces, and conservative tracers to provide the basis for differential interpretation.

State New York
Objectives Provide integrated tracer and tracer interpretation tools to facilitate quantitative characterization of temperature distributions and surface area available for heat transfer in EGS reservoirs.
Awardees (Company / Institution) Brookhaven National Laboratory


Partner 1 Pacific Northwest National Laboratory
Partner 2 Los Alamos National Laboratory









Funding Opportunity Announcement DE-PS36-09GO99017

DOE Funding Level (total award amount) $1,075,000.00

Total Project Cost $1,075,000.00



Principal Investigator(s) Paul Kalb
Other Principal Investigators Vince Vermeul, Pacific Northwest National Laboratory; Paul W. Reimus, Los Alamos National Laboratory

Targets / Milestones The project is proposed for the next three years and is divided into four tasks;


- Tracer development and characterization
- Model development and refinement
- Field test design
- Field test execution

Specifically, there are eight proposed milestones that will be achieved;


- Develop numerical models to describe tracer behavior in EGS and to identify thermal and surface adsorption properties of tracers
- Modeling and laboratory assessment of suitability of geothermal and surface area tracers.
- Identification of at least one suite of tracers for a field tracer experiment.
- Development of tracer test design(s) and recommended interpretation for first field tracer test.
- Interpretation of filed tracer test(s).
- Identification of second suite of tracers for a field tracer test. May include same tracers from milestone 3, but with more detailed characterization provided.
- Tracer test design(s) and interpretation methods for a second field tracer test.
- Interpretation of second field tracer test(s).





Location of Project Upton, NY




Funding Source American Recovery and Reinvestment Act of 2009

References EERE Geothermal Technologies Programs[1]

References

  1. EERE Geothermal Technologies Programs