A mathematical model for dissociation of gas hydrate
This paper presents a model for natural gas hydrate dissociation from the methane hydrate reservoir by depressurization or temperature-falling of the well. In this model, the controlling equations are consisted of quality conservation, momentum equilibrium and energy conservation equations. Four med...
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ftchinacadsimech:oai:dspace.imech.ac.cn:311007/60467 2023-05-15T17:11:50+02:00 A mathematical model for dissociation of gas hydrate 鲁晓兵 王淑云 张旭辉 李清平 Zeng XH(曾晓辉) Lu, X. B. 2009 http://dspace.imech.ac.cn/handle/311007/60467 英语 eng Proceedings of the International Offshore and Polar Engineering Conference Lu XB,Wang SY,Zhang XH,et al. A mathematical model for dissociation of gas hydrate[C]. 见:19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE. Osaka, Japan. June 21, 2009 - June 26, 2009 http://dspace.imech.ac.cn/handle/311007/60467 cn.org.cspace.api.content.CopyrightPolicy@1a43e1e Controlling Equation Depressurizations Dissociation Rates Energy Conservation Equations Flowthrough Geological Formation Heat Conductivity Heat Suction Initial Saturation Methane Hydrates Porous Media Quality Conservation Thermodynamic Equilibria 会议论文 2009 ftchinacadsimech 2022-12-19T18:23:13Z This paper presents a model for natural gas hydrate dissociation from the methane hydrate reservoir by depressurization or temperature-falling of the well. In this model, the controlling equations are consisted of quality conservation, momentum equilibrium and energy conservation equations. Four media: Free methane (gas), methane hydrate (solid), rock skeleton, and water (liquid) are in thermodynamic equilibrium. The heat suction by the dissociation and the convection-conduction are considered also. The geological formation is assumed to be uniform and the flow of free methane is regarded as flow through a porous media with porosity. It is shown that the dissociation rate increases with the increase of depressurization and the increase of initial saturation of gas hydrate and degrades fast with the distance from the boundary. The changes of the pressure on the boundary have large effects on the dissipation of the pore pressure. The changes of the heat conductivity have little effects on the dissociation of gas hydrate and the dissipation of pore pressure. Copyright © 2009 by The International Society of Offshore and Polar Engineers (ISOPE). Other/Unknown Material Methane hydrate IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) |
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Open Polar |
collection |
IMECH-IR (Institute of Mechanics, Chinese Academy of Sciences) |
op_collection_id |
ftchinacadsimech |
language |
English |
topic |
Controlling Equation Depressurizations Dissociation Rates Energy Conservation Equations Flowthrough Geological Formation Heat Conductivity Heat Suction Initial Saturation Methane Hydrates Porous Media Quality Conservation Thermodynamic Equilibria |
spellingShingle |
Controlling Equation Depressurizations Dissociation Rates Energy Conservation Equations Flowthrough Geological Formation Heat Conductivity Heat Suction Initial Saturation Methane Hydrates Porous Media Quality Conservation Thermodynamic Equilibria 鲁晓兵 王淑云 张旭辉 李清平 Zeng XH(曾晓辉) Lu, X. B. A mathematical model for dissociation of gas hydrate |
topic_facet |
Controlling Equation Depressurizations Dissociation Rates Energy Conservation Equations Flowthrough Geological Formation Heat Conductivity Heat Suction Initial Saturation Methane Hydrates Porous Media Quality Conservation Thermodynamic Equilibria |
description |
This paper presents a model for natural gas hydrate dissociation from the methane hydrate reservoir by depressurization or temperature-falling of the well. In this model, the controlling equations are consisted of quality conservation, momentum equilibrium and energy conservation equations. Four media: Free methane (gas), methane hydrate (solid), rock skeleton, and water (liquid) are in thermodynamic equilibrium. The heat suction by the dissociation and the convection-conduction are considered also. The geological formation is assumed to be uniform and the flow of free methane is regarded as flow through a porous media with porosity. It is shown that the dissociation rate increases with the increase of depressurization and the increase of initial saturation of gas hydrate and degrades fast with the distance from the boundary. The changes of the pressure on the boundary have large effects on the dissipation of the pore pressure. The changes of the heat conductivity have little effects on the dissociation of gas hydrate and the dissipation of pore pressure. Copyright © 2009 by The International Society of Offshore and Polar Engineers (ISOPE). |
format |
Other/Unknown Material |
author |
鲁晓兵 王淑云 张旭辉 李清平 Zeng XH(曾晓辉) Lu, X. B. |
author_facet |
鲁晓兵 王淑云 张旭辉 李清平 Zeng XH(曾晓辉) Lu, X. B. |
author_sort |
鲁晓兵 |
title |
A mathematical model for dissociation of gas hydrate |
title_short |
A mathematical model for dissociation of gas hydrate |
title_full |
A mathematical model for dissociation of gas hydrate |
title_fullStr |
A mathematical model for dissociation of gas hydrate |
title_full_unstemmed |
A mathematical model for dissociation of gas hydrate |
title_sort |
mathematical model for dissociation of gas hydrate |
publishDate |
2009 |
url |
http://dspace.imech.ac.cn/handle/311007/60467 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
Proceedings of the International Offshore and Polar Engineering Conference Lu XB,Wang SY,Zhang XH,et al. A mathematical model for dissociation of gas hydrate[C]. 见:19th (2009) International OFFSHORE AND POLAR ENGINEERING CONFERENCE. Osaka, Japan. June 21, 2009 - June 26, 2009 http://dspace.imech.ac.cn/handle/311007/60467 |
op_rights |
cn.org.cspace.api.content.CopyrightPolicy@1a43e1e |
_version_ |
1766068591823683584 |