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Title: Development of robust pressure management strategies for geologic CO 2 sequestration

Injecting CO 2 into deep geologic formations for permanent storage can potentially lead to leakage or induced seismicity if the overpressures exceed the fracture gradient or fault re-activation pressure. Strategies that remove reservoir fluids before or after injection may reduce these risks. But, even extensively characterized reservoirs can have substantial gaps in characterization necessary for developing optimal deterministic or even probabilistic pressure management strategies. The characterization data may not provide well-defined bounds or distributions of reservoir parameters or conditions (permeability, fault locations, fracture gradient, fault reactivation pressure). To assess the impact of these uncertainties, we present an approach for evaluating alternative pressure management strategies based on their robustness of meeting project performance criteria. We quantify the robustness of alternative strategies against several criteria: (1) exceeding fault re-activation pressure, (2) failing to inject a desired quantity of CO 2, (3) exceeding a maximum quantity of extracted brine, and (4) failing to reach a desired extraction efficiency. Our approach allows nuances of competing and complimentary criteria to be quantitatively evaluated in a manner and in a level of detail not possible with optimization approaches. We illustrate the fundamentals of the approach on a simple one-dimensional analytical example using the Thiem equation. Here,more » we demonstrate the approach using a numerical flow and transport model with uncertain heterogeneous permeabilities using data and site characteristics from the Rock Springs Uplift Carbon Storage Site in southwestern Wyoming.« less
ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ;  [2] ;  [2] ; ORCiD logo [1] ;  [1] ;  [3] ;  [1] ;  [4] ; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Univ. of Wyoming, Laramie, WY (United States). Carbon Management Inst.
  3. The Ohio State Univ., Columbus, OH (United States). Dept. of Civil, Environmental, and Geodetic Engineering
  4. The Ohio State Univ., Columbus, OH (United States). Dept. of Civil, Environmental, and Geodetic Engineering and the John Glenn College of Public Affairs
Publication Date:
Report Number(s):
Journal ID: ISSN 1750-5836
Grant/Contract Number:
AC52-06NA25396; FE0026159
Accepted Manuscript
Journal Name:
International Journal of Greenhouse Gas Control
Additional Journal Information:
Journal Volume: 64; Journal Issue: C; Journal ID: ISSN 1750-5836
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Fossil Energy (FE); West Virginia Univ., Morgantown, WV (United States). Clean Energy Research Center and US-China Advanced Coal Technology Consortium (CERC-ACTC)
Contributing Orgs:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Country of Publication:
United States
58 GEOSCIENCES; Pressure management; Decision analysis; Brine extraction; Robustness
OSTI Identifier: