Numerical Simulation Study on Optimal CO2 Injection Well Placement for Sequestration in Old Gob: A Case Study of the Huainan Mining Area Article Swipe
YOU?
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· 2024
· Open Access
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· DOI: https://doi.org/10.3390/pr12102167
The old gob, as a potential CO2 geological storage reservoir, has huge storage potential. To clarify the distribution characteristics and storage capacity of CO2 in the old gob after different well deployment schemes, this study, based on the actual geological conditions of the old gob in the Huainan mining area, uses the COMSOL software to numerically simulate CO2 injection into the old gob, considering the heterogeneity of permeability and the difference in coal-rock adsorption capacity within the old gob. The research indicates that the distribution characteristics of CO2 are significantly influenced by the deployment scheme. Specifically, different deployment schemes result in varying CO2 concentrations and distribution patterns. Particularly, when the injection well is deployed at a depth of 65 m, the distribution of CO2 in the low-permeability upper part of the old gob will significantly increase and the horizontal distribution range will significantly decrease. Under different well deployment modes, the CO2 storage capacity varies significantly. When the injection well is deployed at a depth of 65 m, it is more conducive to the storage of CO2 than at other deeper depths and the total storage capacity is larger. In addition, increasing the number of monitoring wells helps the migration and diffusion of CO2 in the old gob. Reasonably increasing the number of monitoring wells and adopting a symmetric deployment mode can significantly improve the CO2 storage capacity in the old gob. Through a reasonable deployment scheme, the CO2 storage capacity in the old gob can be more than 1.8 times that of the single monitoring well deployment scheme. Overall, based on the analysis of the distribution characteristics and storage capacity, the vertical positioning of the injection wells and the deployment mode of the monitoring wells that are conducive to improving the CO2 storage capacity in the old gob are obtained, which can provide an important reference for the well deployment scheme of CO2 storage in the old gob.
Related Topics
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/pr12102167
- OA Status
- gold
- References
- 40
- Related Works
- 10
- OpenAlex ID
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Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4403130088Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/pr12102167Digital Object Identifier
- Title
-
Numerical Simulation Study on Optimal CO2 Injection Well Placement for Sequestration in Old Gob: A Case Study of the Huainan Mining AreaWork title
- Type
-
articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-10-04Full publication date if available
- Authors
-
Yongchun Chen, Yanfei Xu, Yuchen Tian, Helong Zhang, Bo Xue, Shiheng Chen, Yinghai Liu, Yanzhi Liu, Shiqi Liu, Shuxun Sang, Sijian ZhengList of authors in order
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https://doi.org/10.3390/pr12102167Publisher landing page
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YesWhether a free full text is available
- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3390/pr12102167Direct OA link when available
- Concepts
-
Mining engineering, Carbon sequestration, Petroleum engineering, Geology, Environmental science, Computer science, Chemistry, Carbon dioxide, Organic chemistryTop concepts (fields/topics) attached by OpenAlex
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0Total citation count in OpenAlex
- References (count)
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40Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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