Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock

In view of the practical problems faced by the CO2 sequestration in aquifers, this paper considers the influence of injection rate, water production rate, and other factors on CO2 injection amount, residual sequestration amount, dissolution sequestration amount, and pressure evolution under the cons...

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Main Authors: Li Jinghong, Cui Chuanzhi
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/06/e3sconf_iceree2023_01007.pdf
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author Li Jinghong
Cui Chuanzhi
author_facet Li Jinghong
Cui Chuanzhi
author_sort Li Jinghong
collection DOAJ
description In view of the practical problems faced by the CO2 sequestration in aquifers, this paper considers the influence of injection rate, water production rate, and other factors on CO2 injection amount, residual sequestration amount, dissolution sequestration amount, and pressure evolution under the constraint of cap rock breakthrough pressure is studied by using a numerical simulation method, and the sequestration potential is evaluated. The results show that: (1) Water production measures can improve CO2 injection, dissolution sequestration, and residual sequestration. (2) Low ratio of vertical permeability to horizontal permeability is conducive to the security and stability of CO2 sequestration in the long term. The research content provides support for the evaluation of CO2 saline aquifer sequestration potential and field practice.
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spelling doaj.art-51ee261cad7a4234a569c16b1f3c40bb2023-02-21T08:06:05ZengEDP SciencesE3S Web of Conferences2267-12422023-01-013690100710.1051/e3sconf/202336901007e3sconf_iceree2023_01007Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rockLi Jinghong0Cui Chuanzhi1School of Petroleum Engineering, China University of Petroleum (East China)School of Petroleum Engineering, China University of Petroleum (East China)In view of the practical problems faced by the CO2 sequestration in aquifers, this paper considers the influence of injection rate, water production rate, and other factors on CO2 injection amount, residual sequestration amount, dissolution sequestration amount, and pressure evolution under the constraint of cap rock breakthrough pressure is studied by using a numerical simulation method, and the sequestration potential is evaluated. The results show that: (1) Water production measures can improve CO2 injection, dissolution sequestration, and residual sequestration. (2) Low ratio of vertical permeability to horizontal permeability is conducive to the security and stability of CO2 sequestration in the long term. The research content provides support for the evaluation of CO2 saline aquifer sequestration potential and field practice.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/06/e3sconf_iceree2023_01007.pdf
spellingShingle Li Jinghong
Cui Chuanzhi
Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
E3S Web of Conferences
title Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
title_full Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
title_fullStr Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
title_full_unstemmed Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
title_short Study on influence factors of saline aquifer CO2 sequestration under the constraint of cap rock
title_sort study on influence factors of saline aquifer co2 sequestration under the constraint of cap rock
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/06/e3sconf_iceree2023_01007.pdf
work_keys_str_mv AT lijinghong studyoninfluencefactorsofsalineaquiferco2sequestrationundertheconstraintofcaprock
AT cuichuanzhi studyoninfluencefactorsofsalineaquiferco2sequestrationundertheconstraintofcaprock