Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation
Permeability is one of the key factors that determine the fluids flow capacity and production potential of hydrate deposits. In this study, an experimental setup is developed to investigate the flow properties of the porous media, and the permeabilities to water are measured in the unconsolidated po...
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| Format: | Article |
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MDPI AG
2013-07-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/6/7/3622 |
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| author | Xiao-Sen Li Gang Li Jia-Lin Jia Jing-Chun Feng Bo Li |
| author_facet | Xiao-Sen Li Gang Li Jia-Lin Jia Jing-Chun Feng Bo Li |
| author_sort | Xiao-Sen Li |
| collection | DOAJ |
| description | Permeability is one of the key factors that determine the fluids flow capacity and production potential of hydrate deposits. In this study, an experimental setup is developed to investigate the flow properties of the porous media, and the permeabilities to water are measured in the unconsolidated porous media with or without hydrate deposition in the pores. A specialized method of precisely controlling the amount of injected methane gas is employed to form methane hydrate in the core sample, and the hydrate formation process is described by the change characteristics of the gas and hydrate saturations. It is found that the residual gas plays an obstructive role in the water flow and it tends to slightly reduce the water permeability in the porous media, especially under high pressure conditions. After hydrate formation in the core sample, relatively steady flow state can be obtained under suitable water injection rate Q at which hydrate dissociation rate is very slow. The absolute permeability of the porous sample is reduced from 49.2 to 1.2 Darcies when the hydrate saturation increases from 0 to 9.3% in this study, indicating a strong dependence of k on the hydrate saturation. |
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| id | doaj.art-4bade000763b4bb0af4c34b2fb27f635 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T12:48:24Z |
| publishDate | 2013-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4bade000763b4bb0af4c34b2fb27f6352022-12-22T04:23:17ZengMDPI AGEnergies1996-10732013-07-01673622363610.3390/en6073622Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate FormationXiao-Sen LiGang LiJia-Lin JiaJing-Chun FengBo LiPermeability is one of the key factors that determine the fluids flow capacity and production potential of hydrate deposits. In this study, an experimental setup is developed to investigate the flow properties of the porous media, and the permeabilities to water are measured in the unconsolidated porous media with or without hydrate deposition in the pores. A specialized method of precisely controlling the amount of injected methane gas is employed to form methane hydrate in the core sample, and the hydrate formation process is described by the change characteristics of the gas and hydrate saturations. It is found that the residual gas plays an obstructive role in the water flow and it tends to slightly reduce the water permeability in the porous media, especially under high pressure conditions. After hydrate formation in the core sample, relatively steady flow state can be obtained under suitable water injection rate Q at which hydrate dissociation rate is very slow. The absolute permeability of the porous sample is reduced from 49.2 to 1.2 Darcies when the hydrate saturation increases from 0 to 9.3% in this study, indicating a strong dependence of k on the hydrate saturation.http://www.mdpi.com/1996-1073/6/7/3622permeabilitymethane hydrateporous media |
| spellingShingle | Xiao-Sen Li Gang Li Jia-Lin Jia Jing-Chun Feng Bo Li Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation Energies permeability methane hydrate porous media |
| title | Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation |
| title_full | Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation |
| title_fullStr | Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation |
| title_full_unstemmed | Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation |
| title_short | Measurements of Water Permeability in Unconsolidated Porous Media with Methane Hydrate Formation |
| title_sort | measurements of water permeability in unconsolidated porous media with methane hydrate formation |
| topic | permeability methane hydrate porous media |
| url | http://www.mdpi.com/1996-1073/6/7/3622 |
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