Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water Geothermal Project
Last modified on July 22, 2011.
|Project Title||Experiment-Based Model for the Chemical Interactions between Geothermal Rocks, Supercritical Carbon Dioxide and Water|
|Project Type / Topic 1||Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis|
|Project Type / Topic 2||Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions|
|Project Description|| The geochemical model will be developed on a foundation of both theory and measurements of chemical and physical interactions between minerals, rocks, scCO2 and water. An experimentally validated reservoir modeling capability is critically important for the evaluation of the scCO2-EGS concept, the adoption of which could significantly enhance energy production in the USA.
Flow-through experiments will be performed using different mixtures of CO2 and aqueous fluids, with a focus on the critical steps of a reservoir transition from water to scCO2.
This experimentation will address a number of issues that are not accessible through batch experiments, including rock-fluid interactions with chemical and temperature gradients, impacts of porosity and permeability changes due to in-situ mineral transformations, and rate of water removal by anhydrous scCO2.
|Objectives||Develop a new geochemical model capable of simulating an EGS-CO2 reservoir both during the transition from water to supercritical carbon dioxide (scCO2).|
|Awardees (Company / Institution)||Symyx Technologies, Inc.|
|Partner 1||Lawrence Berkeley National Laboratory|
|Funding Opportunity Announcement||DE-FOA-0000075|
|DOE Funding Level (total award amount)||$3,000,000.00|
|Awardee Cost Share||$1,004,705.00|
|Total Project Cost||$4,004,705.00|
|Principal Investigator(s)||Miroslav Petro, Symyx Technologies, Inc.|
|Other Principal Investigators||Thomas McWaid, Symyx Technologies, Inc; Karsten Pruess, Lawrence Berkeley National Laboratory; Tianfu Xu, Lawrence Berkeley National Laboratory; and Patrick Dobson, Lawrence Berkeley National Laboratory.|
|Targets / Milestones|| - Determine the chemical interactions between relevant minerals and EGS-CO2 reservoir fluids under a variety of conditions.
|Location of Project||Sunnyvale, CA|
|Impacts||If successful, the simulation capabilities developed will help determine if CO2 can be used as a heat mining fluid for Enhanced Geothermal Systems.|
|Funding Source||American Recovery and Reinvestment Act of 2009|
|References||EERE Geothermal Technologies Programs|