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Title: Large Releases from CO2 Storage Reservoirs: A Discussion ofNatural Analogs, FEPS, and Modeling Needs

Abstract

While the purpose of geologic storage in deep saline formations is to trap greenhouse gases underground, the potential exists for CO{sub 2} to escape from the target reservoir, migrate upward along permeable pathways, and discharge at the land surface. In this paper, we evaluate the potential for such CO{sub 2} discharges based on the analysis of natural analogs, where large releases of gas have been observed. We are particularly interested in circumstances that could generate sudden, possibly self-enhancing release events. The probability for such events may be low, but the circumstances under which they occur and the potential consequences need to be evaluated in order to design appropriate site-selection and risk-management strategies. Numerical modeling of hypothetical test cases is suggested to determine critical conditions for large CO{sub 2} releases, to evaluate whether such conditions may be possible at designated storage sites, and, if applicable, to evaluate the potential impacts of such events as well as design appropriate mitigation strategies.

Authors:
; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
928572
Report Number(s):
LBNL-61237
R&D Project: 0; BnR: YN0100000; TRN: US200811%%402
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Conference
Resource Relation:
Conference: Fifth Annual Conference on Carbon Capture andSequestration, Washington D.C.,05/22/2006-05/25/2006
Country of Publication:
United States
Language:
English
Subject:
54; CARBON; DESIGN; GREENHOUSE GASES; MITIGATION; PROBABILITY; SIMULATION; SITE SELECTION; STORAGE; TARGETS

Citation Formats

Birkholzer, J, Pruess, K, Lewicki, J L, Rutqvist, J, Tsang, C-F, and Karimjee, A. Large Releases from CO2 Storage Reservoirs: A Discussion ofNatural Analogs, FEPS, and Modeling Needs. United States: N. p., 2005. Web.
Birkholzer, J, Pruess, K, Lewicki, J L, Rutqvist, J, Tsang, C-F, & Karimjee, A. Large Releases from CO2 Storage Reservoirs: A Discussion ofNatural Analogs, FEPS, and Modeling Needs. United States.
Birkholzer, J, Pruess, K, Lewicki, J L, Rutqvist, J, Tsang, C-F, and Karimjee, A. 2005. "Large Releases from CO2 Storage Reservoirs: A Discussion ofNatural Analogs, FEPS, and Modeling Needs". United States. https://www.osti.gov/servlets/purl/928572.
@article{osti_928572,
title = {Large Releases from CO2 Storage Reservoirs: A Discussion ofNatural Analogs, FEPS, and Modeling Needs},
author = {Birkholzer, J and Pruess, K and Lewicki, J L and Rutqvist, J and Tsang, C-F and Karimjee, A},
abstractNote = {While the purpose of geologic storage in deep saline formations is to trap greenhouse gases underground, the potential exists for CO{sub 2} to escape from the target reservoir, migrate upward along permeable pathways, and discharge at the land surface. In this paper, we evaluate the potential for such CO{sub 2} discharges based on the analysis of natural analogs, where large releases of gas have been observed. We are particularly interested in circumstances that could generate sudden, possibly self-enhancing release events. The probability for such events may be low, but the circumstances under which they occur and the potential consequences need to be evaluated in order to design appropriate site-selection and risk-management strategies. Numerical modeling of hypothetical test cases is suggested to determine critical conditions for large CO{sub 2} releases, to evaluate whether such conditions may be possible at designated storage sites, and, if applicable, to evaluate the potential impacts of such events as well as design appropriate mitigation strategies.},
doi = {},
url = {https://www.osti.gov/biblio/928572}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {11}
}

Conference:
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