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Title: Maturing global CO 2 storage resources on offshore continental margins to achieve 2DS emissions reductions

Abstract

Most studies on CO 2 emissions reduction strategies that address the ‘two-degree scenario’ (2DS) recognize a significant role for CCS. For CCS to be effective, it must be deployed globally on both existing and emerging energy systems. For nations with large-scale emissions, offshore geologic CO 2 storage provides an attractive and efficient long-term strategy. While some nations are already developing CCS projects using offshore CO 2 storage resources, most geographic regions have yet to begin. This paper demonstrates the geologic significance of global continental margins for providing broadly-equitable, geographically-relevant, and high-quality CO 2 storage resources. We then use principles of pore-space utilization and subsurface pressure constraints together with analogs of historic industry well deployment rates to demonstrate how the required storage capacity can be developed as a function of time and technical maturity to enable the global deployment of offshore storage for facilitating 2DS. Our analysis indicates that 10–14 thousand CO 2 injection wells will be needed globally by 2050 to achieve this goal.

Authors:
 [1];  [2]
  1. Norwegian Inst. of Science and Technology, Trondheim (Norway); Equinor Research and Technology, Trondheim (Norway)
  2. Univ. of Texas, Austin, TX (United States)
Publication Date:
Research Org.:
Univ. of Texas, Austin, TX (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE), Clean Coal and Carbon (FE-20)
OSTI Identifier:
1578119
Grant/Contract Number:  
FE0026083
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; Carbon geo-storage; carbon geo-sequestration; CCS; offshore basins; continental shelf; continental margin; subsurface pressure; two-degree scenario; injection wells; global; gigatonne-scale; pressure analysis

Citation Formats

Ringrose, P. S., and Meckel, T. A. Maturing global CO2 storage resources on offshore continental margins to achieve 2DS emissions reductions. United States: N. p., 2019. Web. doi:10.1038/s41598-019-54363-z.
Ringrose, P. S., & Meckel, T. A. Maturing global CO2 storage resources on offshore continental margins to achieve 2DS emissions reductions. United States. doi:10.1038/s41598-019-54363-z.
Ringrose, P. S., and Meckel, T. A. Fri . "Maturing global CO2 storage resources on offshore continental margins to achieve 2DS emissions reductions". United States. doi:10.1038/s41598-019-54363-z. https://www.osti.gov/servlets/purl/1578119.
@article{osti_1578119,
title = {Maturing global CO2 storage resources on offshore continental margins to achieve 2DS emissions reductions},
author = {Ringrose, P. S. and Meckel, T. A.},
abstractNote = {Most studies on CO2 emissions reduction strategies that address the ‘two-degree scenario’ (2DS) recognize a significant role for CCS. For CCS to be effective, it must be deployed globally on both existing and emerging energy systems. For nations with large-scale emissions, offshore geologic CO2 storage provides an attractive and efficient long-term strategy. While some nations are already developing CCS projects using offshore CO2 storage resources, most geographic regions have yet to begin. This paper demonstrates the geologic significance of global continental margins for providing broadly-equitable, geographically-relevant, and high-quality CO2 storage resources. We then use principles of pore-space utilization and subsurface pressure constraints together with analogs of historic industry well deployment rates to demonstrate how the required storage capacity can be developed as a function of time and technical maturity to enable the global deployment of offshore storage for facilitating 2DS. Our analysis indicates that 10–14 thousand CO2 injection wells will be needed globally by 2050 to achieve this goal.},
doi = {10.1038/s41598-019-54363-z},
journal = {Scientific Reports},
number = 1,
volume = 9,
place = {United States},
year = {2019},
month = {11}
}

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