Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt
Permeability is a crucial parameter to evaluate the recovery and separation of natural gas from hydrate reservoirs. In this work, the water effective and relative permeability (kw and krw) of silty sands and silt with different hydrate saturation (SH) was supplemented. Experimental results showed th...
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Online Access: | http://ir.giec.ac.cn/handle/344007/32923 http://ir.giec.ac.cn/handle/344007/32924 https://doi.org/10.1016/j.jngse.2021.103891 |
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/32924 2023-05-15T17:12:05+02:00 Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt Li, Gang Xu, Ze-Lin Li, Xiao-Sen Shen, Peng-Fei Lv, Qiu-Nan 2021-05-01 http://ir.giec.ac.cn/handle/344007/32923 http://ir.giec.ac.cn/handle/344007/32924 https://doi.org/10.1016/j.jngse.2021.103891 英语 eng ELSEVIER SCI LTD JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING http://ir.giec.ac.cn/handle/344007/32923 http://ir.giec.ac.cn/handle/344007/32924 doi:10.1016/j.jngse.2021.103891 Methane hydrate Permeability Silty sands Silt Hydrate migration Saturation Energy & Fuels Engineering Chemical 期刊论文 2021 ftchacadsciegiec https://doi.org/10.1016/j.jngse.2021.103891 2022-09-23T14:17:54Z Permeability is a crucial parameter to evaluate the recovery and separation of natural gas from hydrate reservoirs. In this work, the water effective and relative permeability (kw and krw) of silty sands and silt with different hydrate saturation (SH) was supplemented. Experimental results showed that the differential pressure changes of sediments during the permeability measurement were diverse. It was necessary to record the complete differential pressure process and find the stable stage of pressure difference. The decrease of dissolved methane in water would bring about the dissociation of hydrate, which led to the formation of flow channel in the sediment. The effect of SH on kw was very obvious even if the SH was at a relatively low level. The effect of SH lower and greater than about 5% on krw was different, and SH had more obvious effect on krw of silt than that of silty sands. The migration behavior of hydrate was discussed in the simple cubic model, and hydrate migration might be the main factor causing the seriously effect of low SH on kw, and the different effect of SH lower and greater than about 5% on krw. Moreover, for the porous media with particle size lower than silt, the method of steady?state water injection was no longer recommended. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Journal of Natural Gas Science and Engineering 89 103891 |
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Open Polar |
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Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Methane hydrate Permeability Silty sands Silt Hydrate migration Saturation Energy & Fuels Engineering Chemical |
spellingShingle |
Methane hydrate Permeability Silty sands Silt Hydrate migration Saturation Energy & Fuels Engineering Chemical Li, Gang Xu, Ze-Lin Li, Xiao-Sen Shen, Peng-Fei Lv, Qiu-Nan Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
topic_facet |
Methane hydrate Permeability Silty sands Silt Hydrate migration Saturation Energy & Fuels Engineering Chemical |
description |
Permeability is a crucial parameter to evaluate the recovery and separation of natural gas from hydrate reservoirs. In this work, the water effective and relative permeability (kw and krw) of silty sands and silt with different hydrate saturation (SH) was supplemented. Experimental results showed that the differential pressure changes of sediments during the permeability measurement were diverse. It was necessary to record the complete differential pressure process and find the stable stage of pressure difference. The decrease of dissolved methane in water would bring about the dissociation of hydrate, which led to the formation of flow channel in the sediment. The effect of SH on kw was very obvious even if the SH was at a relatively low level. The effect of SH lower and greater than about 5% on krw was different, and SH had more obvious effect on krw of silt than that of silty sands. The migration behavior of hydrate was discussed in the simple cubic model, and hydrate migration might be the main factor causing the seriously effect of low SH on kw, and the different effect of SH lower and greater than about 5% on krw. Moreover, for the porous media with particle size lower than silt, the method of steady?state water injection was no longer recommended. |
format |
Report |
author |
Li, Gang Xu, Ze-Lin Li, Xiao-Sen Shen, Peng-Fei Lv, Qiu-Nan |
author_facet |
Li, Gang Xu, Ze-Lin Li, Xiao-Sen Shen, Peng-Fei Lv, Qiu-Nan |
author_sort |
Li, Gang |
title |
Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
title_short |
Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
title_full |
Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
title_fullStr |
Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
title_full_unstemmed |
Permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
title_sort |
permeability investigation and hydrate migration of hydrate?bearing silty sands and silt |
publisher |
ELSEVIER SCI LTD |
publishDate |
2021 |
url |
http://ir.giec.ac.cn/handle/344007/32923 http://ir.giec.ac.cn/handle/344007/32924 https://doi.org/10.1016/j.jngse.2021.103891 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING http://ir.giec.ac.cn/handle/344007/32923 http://ir.giec.ac.cn/handle/344007/32924 doi:10.1016/j.jngse.2021.103891 |
op_doi |
https://doi.org/10.1016/j.jngse.2021.103891 |
container_title |
Journal of Natural Gas Science and Engineering |
container_volume |
89 |
container_start_page |
103891 |
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1766068843765039104 |