Development of an Advanced Stimulation/Production Predictive Simulator for Enhanced Geothermal Systems Geothermal Project
Last modified on July 22, 2011.
|Project Title||Development of an Advanced Stimulation/Production Predictive Simulator for Enhanced Geothermal Systems|
|Project Type / Topic 1||Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis|
|Project Type / Topic 2||Stimulation Prediction Models|
|Project Description|| The new simulator will provide a more complete description of the fracture network created by hydraulic stimulation of the EGS system than any existing technique. Since the simulator will also incorporate an energy equation and the effect of temperature changes on stress and rock deformation (and hence porosity and permeability enhancement), it will be equally useful in simulating the long term response of the EGS system to cold water injection and hot water production.
The simulator will first be verified by modeling the hydraulic simulation experiments that have already been performed at the Soultz EGS site in France. Subsequently, the simulator will be used to model one or more experiments in the United States.
|Objectives||Develop and verify an advanced stimulation/production predictive model for enhanced geothermal systems.|
|Awardees (Company / Institution)||Science Applications International Corporation|
|Partner 1||GEOWATT AG|
|Funding Opportunity Announcement||DE-FOA-0000075|
|DOE Funding Level (total award amount)||$1,025,953.00|
|Awardee Cost Share||$256,489.00|
|Total Project Cost||$1,282,442.00|
|Principal Investigator(s)||John W. Pritchett, SAIC|
|Targets / Milestones|| Develop a three-dimensional (3-D) simulator to model the following aspects of stimulation and long-term fluid injection and production:
The 3-D simulator will also include a provision for both conservative and non-conservative tracers. In addition, it is proposed to couple at least some of the existing SAIC geophysical postprocessors (e.g. self-potential) to the 3-D simulator. Results of tracer tests and self-potential measurements, if available, can also be used to calibrate the EGS reservoir model, and provide more reliable predictions of the response of the reservoir to long term injection and production.
|Location of Project||San Diego, CA|
|Impacts||If successful, this project will deliver a model for the qualitative analysis of the stimulated reservoir's volume for information on adequate fracture connectivity or permeability for commercial operations and reservoir sustainability.|
|Funding Source||American Recovery and Reinvestment Act of 2009|
|References||EERE Geothermal Technologies Programs|