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Title: Risk-based monitoring designs for detecting CO2 leakage through abandoned wellbores: An application of NRAP’s WLAT and DREAM tools

Abstract

We report that one suggested approach to managing the risk of geologic CO2 storage projects is to perform risk-based subsurface monitoring targeting early leak detection. The challenge in risk-based monitoring is that leakage impacts are expected to be small in comparison with the footprint of the stored CO2 plume and could be at depths ranging from the depth of storage (often ~1 km bgs) up to surficial aquifers. Addressing this challenge requires a multidisciplinary effort capable of characterizing potential subsurface leakage in terms of likelihood, location, magnitude, impacts to overlying aquifers, and uncertainty as well as innovative monitoring technology design and implementation. The National Risk Assessment Partnership (NRAP) was established to develop related risk assessment tools to provide guidance on such assessments. Here we demonstrate the application workflow of two of the NRAP computational tools, WLAT (Wellbore Leakage Analysis Tool) and DREAM (Designs for Risk Evaluation and Management), to a hypothetical CO2 storage site based on a study area in the Midwestern United States. This workflow shows how CO2 leakage may be estimated, evaluated, and monitored in terms of risk. Results provide guidance on monitoring configurations and technologies which minimize the time to leak detection, maximize the probability detection, andmore » provide cost considerations.« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [2];  [2]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1614875
Alternate Identifier(s):
OSTI ID: 1570497
Report Number(s):
PNNL-SA-140291
Journal ID: ISSN 1750-5836
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Greenhouse Gas Control
Additional Journal Information:
Journal Volume: 91; Journal Issue: C; Journal ID: ISSN 1750-5836
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; NRAP; CO2 storage; risk-based monitoring; risk assessment; DREAM

Citation Formats

Yonkofski, Catherine, Tartakovsky, Guzel D., Huerta, Nicolas J., and Wentworth, Andrew M. Risk-based monitoring designs for detecting CO2 leakage through abandoned wellbores: An application of NRAP’s WLAT and DREAM tools. United States: N. p., 2019. Web. doi:10.1016/j.ijggc.2019.102807.
Yonkofski, Catherine, Tartakovsky, Guzel D., Huerta, Nicolas J., & Wentworth, Andrew M. Risk-based monitoring designs for detecting CO2 leakage through abandoned wellbores: An application of NRAP’s WLAT and DREAM tools. United States. https://doi.org/10.1016/j.ijggc.2019.102807
Yonkofski, Catherine, Tartakovsky, Guzel D., Huerta, Nicolas J., and Wentworth, Andrew M. Fri . "Risk-based monitoring designs for detecting CO2 leakage through abandoned wellbores: An application of NRAP’s WLAT and DREAM tools". United States. https://doi.org/10.1016/j.ijggc.2019.102807. https://www.osti.gov/servlets/purl/1614875.
@article{osti_1614875,
title = {Risk-based monitoring designs for detecting CO2 leakage through abandoned wellbores: An application of NRAP’s WLAT and DREAM tools},
author = {Yonkofski, Catherine and Tartakovsky, Guzel D. and Huerta, Nicolas J. and Wentworth, Andrew M.},
abstractNote = {We report that one suggested approach to managing the risk of geologic CO2 storage projects is to perform risk-based subsurface monitoring targeting early leak detection. The challenge in risk-based monitoring is that leakage impacts are expected to be small in comparison with the footprint of the stored CO2 plume and could be at depths ranging from the depth of storage (often ~1 km bgs) up to surficial aquifers. Addressing this challenge requires a multidisciplinary effort capable of characterizing potential subsurface leakage in terms of likelihood, location, magnitude, impacts to overlying aquifers, and uncertainty as well as innovative monitoring technology design and implementation. The National Risk Assessment Partnership (NRAP) was established to develop related risk assessment tools to provide guidance on such assessments. Here we demonstrate the application workflow of two of the NRAP computational tools, WLAT (Wellbore Leakage Analysis Tool) and DREAM (Designs for Risk Evaluation and Management), to a hypothetical CO2 storage site based on a study area in the Midwestern United States. This workflow shows how CO2 leakage may be estimated, evaluated, and monitored in terms of risk. Results provide guidance on monitoring configurations and technologies which minimize the time to leak detection, maximize the probability detection, and provide cost considerations.},
doi = {10.1016/j.ijggc.2019.102807},
journal = {International Journal of Greenhouse Gas Control},
number = C,
volume = 91,
place = {United States},
year = {Fri Oct 04 00:00:00 EDT 2019},
month = {Fri Oct 04 00:00:00 EDT 2019}
}

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