Feasibility of CO 2 sequestration in shallow transition zones
Abstract
Abstract Geological CO 2 sequestration requires suitable storage sites to store CO 2 at a large scale. Shallow aquifers could be a viable regional solution for stationary CO 2 emitters because of their broad distribution, considerable capacity, and the potential low drilling cost associated with the shallow depths. This study introduces a shallow transition zone in which CO 2 can transit from a gaseous phase into supercritical CO 2 within the pressure range for CO 2 injection; thus, considerable storage capacity is expected. The characteristics and major influencing factors of shallow transition zone storage were compared with those of deep storage to determine the feasibility of CO 2 sequestration in shallow transition zones. The transition zone was found to provide a comparable storage capacity, greater storage efficiency, and a higher proportion of stable CO 2 than a deep aquifer. The depth of this transition zone can be as shallow as 537 m for a warm basin and 656 m for a cold basin. At a depth of 600–1000 m, the primary factors affecting CO 2 storage capacity are formation thickness and porosity, with reservoir heterogeneity and depth having lesser effects. Therefore, depth is of less concern when estimating CO 2 storage potential. Thismore »
- Authors:
-
- Missouri University of Science and Technology Rolla MO USA, University of Illinois at Urbana-Champaign Champaign IL USA
- Missouri University of Science and Technology Rolla MO USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1401321
- Grant/Contract Number:
- #DE–NT0006642
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Greenhouse Gases: Science and Technology
- Additional Journal Information:
- Journal Name: Greenhouse Gases: Science and Technology Journal Volume: 7 Journal Issue: 6; Journal ID: ISSN 2152-3878
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- United Kingdom
- Language:
- English
Citation Formats
Yang, Fang, Bai, Baojun, Dunn‐Norman, Shari, Yang, Fen, and Zhou, Ruisong. Feasibility of CO 2 sequestration in shallow transition zones. United Kingdom: N. p., 2017.
Web. doi:10.1002/ghg.1696.
Yang, Fang, Bai, Baojun, Dunn‐Norman, Shari, Yang, Fen, & Zhou, Ruisong. Feasibility of CO 2 sequestration in shallow transition zones. United Kingdom. https://doi.org/10.1002/ghg.1696
Yang, Fang, Bai, Baojun, Dunn‐Norman, Shari, Yang, Fen, and Zhou, Ruisong. Tue .
"Feasibility of CO 2 sequestration in shallow transition zones". United Kingdom. https://doi.org/10.1002/ghg.1696.
@article{osti_1401321,
title = {Feasibility of CO 2 sequestration in shallow transition zones},
author = {Yang, Fang and Bai, Baojun and Dunn‐Norman, Shari and Yang, Fen and Zhou, Ruisong},
abstractNote = {Abstract Geological CO 2 sequestration requires suitable storage sites to store CO 2 at a large scale. Shallow aquifers could be a viable regional solution for stationary CO 2 emitters because of their broad distribution, considerable capacity, and the potential low drilling cost associated with the shallow depths. This study introduces a shallow transition zone in which CO 2 can transit from a gaseous phase into supercritical CO 2 within the pressure range for CO 2 injection; thus, considerable storage capacity is expected. The characteristics and major influencing factors of shallow transition zone storage were compared with those of deep storage to determine the feasibility of CO 2 sequestration in shallow transition zones. The transition zone was found to provide a comparable storage capacity, greater storage efficiency, and a higher proportion of stable CO 2 than a deep aquifer. The depth of this transition zone can be as shallow as 537 m for a warm basin and 656 m for a cold basin. At a depth of 600–1000 m, the primary factors affecting CO 2 storage capacity are formation thickness and porosity, with reservoir heterogeneity and depth having lesser effects. Therefore, depth is of less concern when estimating CO 2 storage potential. This work explored the transition zone as an effective new option when seeking means of sequestering CO 2 . These results not only establish parameters for CO 2 sequestration in shallow aquifers, but also strengthen the current understanding of CO 2 sequestration in deep aquifers. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.},
doi = {10.1002/ghg.1696},
journal = {Greenhouse Gases: Science and Technology},
number = 6,
volume = 7,
place = {United Kingdom},
year = {Tue Jun 06 00:00:00 EDT 2017},
month = {Tue Jun 06 00:00:00 EDT 2017}
}
https://doi.org/10.1002/ghg.1696
Web of Science
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