Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates
In this study, a radial analytical model for methane hydrate dissociation upon thermal stimulation in porous media considering the effect of wellbore structure has been developed. The analytical approach is based on a similarity solution employing a moving boundary separating the dissociated and und...
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ftdatacite:10.48550/arxiv.1912.12149 2023-05-15T17:12:01+02:00 Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates Roostaie, M. Leonenko, Y. 2019 https://dx.doi.org/10.48550/arxiv.1912.12149 https://arxiv.org/abs/1912.12149 unknown arXiv https://dx.doi.org/10.1016/j.energy.2019.116815 Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 CC-BY-NC-ND Applied Physics physics.app-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2019 ftdatacite https://doi.org/10.48550/arxiv.1912.12149 https://doi.org/10.1016/j.energy.2019.116815 2022-03-10T16:37:45Z In this study, a radial analytical model for methane hydrate dissociation upon thermal stimulation in porous media considering the effect of wellbore structure has been developed. The analytical approach is based on a similarity solution employing a moving boundary separating the dissociated and undissociated zones. Two different heat sources are considered: i) line heat source; and ii) wellbore heat source with specific thickness consisting of casing, gravel, and cement. The temperature and pressure distributions, dissociation rate, and energy efficiency considering various initial and boundary conditions, and reservoir properties are investigated. Direct heat transfer from the heat source to the reservoir without considering the heat conduction in the wellbore thickness causes higher the dissociation rate and gas production in the line heat source model compared to the wellbore heating model. Increasing the heat source temperature or decreasing its pressure increases gas production. However, employing them simultaneously results in greater gas production but reduces energy efficiency. The dissociation rate has direct relation with porosity, thermal diffusivities, and thermal conductivities of the reservoir, but is not dependent on the reservoirs permeability. Article in Journal/Newspaper Methane hydrate DataCite Metadata Store (German National Library of Science and Technology) |
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Applied Physics physics.app-ph FOS Physical sciences |
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Applied Physics physics.app-ph FOS Physical sciences Roostaie, M. Leonenko, Y. Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
topic_facet |
Applied Physics physics.app-ph FOS Physical sciences |
description |
In this study, a radial analytical model for methane hydrate dissociation upon thermal stimulation in porous media considering the effect of wellbore structure has been developed. The analytical approach is based on a similarity solution employing a moving boundary separating the dissociated and undissociated zones. Two different heat sources are considered: i) line heat source; and ii) wellbore heat source with specific thickness consisting of casing, gravel, and cement. The temperature and pressure distributions, dissociation rate, and energy efficiency considering various initial and boundary conditions, and reservoir properties are investigated. Direct heat transfer from the heat source to the reservoir without considering the heat conduction in the wellbore thickness causes higher the dissociation rate and gas production in the line heat source model compared to the wellbore heating model. Increasing the heat source temperature or decreasing its pressure increases gas production. However, employing them simultaneously results in greater gas production but reduces energy efficiency. The dissociation rate has direct relation with porosity, thermal diffusivities, and thermal conductivities of the reservoir, but is not dependent on the reservoirs permeability. |
format |
Article in Journal/Newspaper |
author |
Roostaie, M. Leonenko, Y. |
author_facet |
Roostaie, M. Leonenko, Y. |
author_sort |
Roostaie, M. |
title |
Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
title_short |
Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
title_full |
Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
title_fullStr |
Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
title_full_unstemmed |
Gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
title_sort |
gas production from methane hydrates upon thermal stimulation; an analytical study employing radial coordinates |
publisher |
arXiv |
publishDate |
2019 |
url |
https://dx.doi.org/10.48550/arxiv.1912.12149 https://arxiv.org/abs/1912.12149 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
https://dx.doi.org/10.1016/j.energy.2019.116815 |
op_rights |
Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.48550/arxiv.1912.12149 https://doi.org/10.1016/j.energy.2019.116815 |
_version_ |
1766068773701287936 |