[1650] - Numerical study on CO2 leakage detection using electrical streaming potential data

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Citation
Büsing, H., Vogt, C., Ebigbo, A., Klitzsch, N., 2017. Numerical study on CO2 leakage detection using electrical streaming potential data. Water Resources Research, 53 (1), 455 - 469. DOI: 10.1002/2016WR019803.
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Identification
Title(s):Main Title: Numerical study on CO2 leakage detection using electrical streaming potential data
Description(s):Abstract: We study the feasibility of detecting carbon dioxide (CO2) movement in the overburden of a storage reservoir due to CO2 leakage through an abandoned well by self-potential (SP) measurements at the surface. This is achieved with three-dimensional numerical (SP) modeling of two-phase fluid flow and electrokinetic coupling between flow and streaming potential. We find that, in typical leakage scenarios, for leaky and/or injection wells with conductive metal casing, self-potential signals originating from injection can be identified at the surface. As the injection signal is also observed at the leaky well with metal casing, SP monitoring can be applied for detecting abandoned wells. However, leakage signals are much smaller than the injection signal and thus masked by the latter. We present three alternatives to overcome this problem: (i) simulate the streaming potential of the nonleaky scenario and subtract the result from the measured streaming potential data; (ii) exploit the symmetry of the injection signal by analyzing the potential difference of dipoles with the dipole center at the injection well; or (iii) measure SP during periods where the injection is interrupted. In our judgement, the most promising approach for detecting a real-world CO2 leakage is by combining methods (i) and (ii), because this would give the highest signal from the leakage and omit signals originating from the injection well. Consequently, we recommend SP as monitoring method for subsurface CO2 storage, especially because a leakage can be detected shortly after the injection started even before CO2 arrives at the leaky well.
Identifier(s):DOI: 10.1002/2016WR019803
Citation Advice:Busing, H., C. Vogt, A. Ebigbo, and N. Klitzsch (2017), Numerical study on CO2 leakage detection using electrical streaming potential data, Water Resour. Res., 53, doi:10.1002/2016WR019803.
Responsible Party
Creator(s):Author: Henrik Büsing
Author: Christian Vogt
Author: Anozie Ebigbo
Author: Norbert Klitzsch
Contributor(s):Contact Person: Johanna Ochs
Publisher:AGU PUBLICATIONS, Washington DC, USA
Topic
TR32 Topic:Other
Related Sub-project(s):B8
Subject(s):CRC/TR32 Keywords: CO2 Flux, Modelling
GEMET: carbon dioxide
Topic Category:Environment
File Details
File Name:Buesing_et_al_SPforCO2Leakage_2017.pdf
Data Type:Text
File Size:1470 kB (1.436 MB)
Date(s):Date Accepted: 2016-12-17
Mime Type:application/pdf
Data Format:PDF (PDF-1.7)
Language:English
Status:Completed
Constraints
Download Permission:OnlyTR32
General Access and Use Conditions:According to the TR32DB data policy agreement.
Access Limitations:According to the TR32DB data policy agreement.
Licence:TR32DB Data policy agreement
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Measurement Region:None
Measurement Location:--None--
Specific Informations - Publication
Status:Published
Review:PeerReview
Year:2017
Type:Article
Article Type:Journal
Source:Water Resources Research
Issue:1
Volume:53
Number Of Pages:15
Page Range:455 - 469
Metadata Details
Metadata Creator:Johanna Ochs
Metadata Created:2017-05-21
Metadata Last Updated:2018-02-08
Subproject:B8
Funding Phase:3
Metadata Language:English
Metadata Version:V42
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