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Title: Designs for Risk Evaluation and Management

The Designs for Risk Evaluation and Management (DREAM) tool was developed as part of the effort to quantify the risk of geologic storage of carbon dioxide (CO2) under the U.S. Department of Energy's National Risk Assessment Partnership (NRAP). DREAM is an optimization tool created to identify optimal monitoring schemes that minimize the time to first detection of CO2 leakage from a subsurface storage formation. DREAM acts as a post-processer on user-provided output from subsurface leakage simulations. While DREAM was developed for CO2 leakage scenarios, it is applicable to any subsurface leakage simulation of the same output format. The DREAM tool is comprised of three main components: (1) a Java wizard used to configure and execute the simulations, (2) a visualization tool to view the domain space and optimization results, and (3) a plotting tool used to analyze the results. A secondary Java application is provided to aid users in converting common American Standard Code for Information Interchange (ASCII) output data to the standard DREAM hierarchical data format (HDF5). DREAM employs a simulated annealing approach that searches the solution space by iteratively mutating potential monitoring schemes built of various configurations of monitoring locations and leak detection parameters. This approach has provenmore » to be orders of magnitude faster than an exhaustive search of the entire solution space. The user's manual illustrates the program graphical user interface (GUI), describes the tool inputs, and includes an example application.« less
Publication Date:
OSTI Identifier:
Report Number(s):
DREAM; 003885WKSTN00
R&D Project: National Risk Assessment Partnership; Battelle IPID 30820
DOE Contract Number:
Software Revision:
Software Package Number:
Software Package Contents:
Open Source Software package available from Pacific Northwest National Laboratory at the following URL:
Software CPU:
Open Source:
Source Code Available:
Other Software Info:
Will be posted on NETL website
Research Org:
Pacific Northwest National Laboratory
Sponsoring Org:
United States Department of Energy
Contributing Orgs:
Catherine (Ruprecht) Yonkofski Ellen Porter Jason Gastelum Diana Bacon Christopher Brown
Country of Publication:
United States

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