Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir
In this study, the different saturations of hydrate samples were formed in a cubic hydrate simulator (CHS) filled with silica sand. Subsequently, the hydrate was dissociated by depressurization in conjunction with warm water stimulation using dual horizontal wells. The hydrate dissociation process i...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/10928 2023-05-15T17:12:07+02:00 Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir Feng, Jing-Chun Wang, Yi Li, Xiao-Sen Zhangt, Yu 2015-12-01 http://ir.giec.ac.cn/handle/344007/10928 https://doi.org/10.1021/acs.energyfuels.5b01970 英语 eng ENERGY & FUELS http://ir.giec.ac.cn/handle/344007/10928 doi:10.1021/acs.energyfuels.5b01970 Science & Technology Technology Energy & Fuels Engineering SOUTH CHINA SEA GAS-PRODUCTION POROUS-MEDIA THERMAL-STIMULATION PRODUCTION BEHAVIORS 5-SPOT WELL SIMULATOR SEDIMENT DEPOSITS SYSTEM Chemical Article 期刊论文 2015 ftchacadsciegiec https://doi.org/10.1021/acs.energyfuels.5b01970 2022-09-23T14:12:36Z In this study, the different saturations of hydrate samples were formed in a cubic hydrate simulator (CHS) filled with silica sand. Subsequently, the hydrate was dissociated by depressurization in conjunction with warm water stimulation using dual horizontal wells. The hydrate dissociation process includes the depressurizing period and the injection period (the constant-pressure period). Hydrate was dissociated simultaneously in the whole reservoir during the depressurizing period. Meanwhile, gas production in the depressurizing period is mainly determined by the depressurizing rate, and it has little relation to the hydrate saturation (when the hydrate saturation ranges from 15.5% to 39.1%). During the injection period, more gas can be produced for the reservoir with the higher hydrate saturation, whereas the highest average gas production rate can be obtained for the reservoir with the middle-higher hydrate saturation. With respect to the gas production in the depressurizing period, gas production in the injection period is the dominant factor affecting the whole production efficiency in the experiment. In addition, the energy ratio only increases with the increase of the hydrate saturation in the prior stage of the constant-pressure period, and the final energy ratio with the middle-higher hydrate saturation is the maximum. Moreover, energy analysis indicates that heat injection plays the leading role for hydrate dissociation in the constant-pressure production period when the initial hydrate saturation is higher than 32.4%. Article in Journal/Newspaper Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Energy & Fuels 29 12 7875 7884 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Science & Technology Technology Energy & Fuels Engineering SOUTH CHINA SEA GAS-PRODUCTION POROUS-MEDIA THERMAL-STIMULATION PRODUCTION BEHAVIORS 5-SPOT WELL SIMULATOR SEDIMENT DEPOSITS SYSTEM Chemical |
spellingShingle |
Science & Technology Technology Energy & Fuels Engineering SOUTH CHINA SEA GAS-PRODUCTION POROUS-MEDIA THERMAL-STIMULATION PRODUCTION BEHAVIORS 5-SPOT WELL SIMULATOR SEDIMENT DEPOSITS SYSTEM Chemical Feng, Jing-Chun Wang, Yi Li, Xiao-Sen Zhangt, Yu Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
topic_facet |
Science & Technology Technology Energy & Fuels Engineering SOUTH CHINA SEA GAS-PRODUCTION POROUS-MEDIA THERMAL-STIMULATION PRODUCTION BEHAVIORS 5-SPOT WELL SIMULATOR SEDIMENT DEPOSITS SYSTEM Chemical |
description |
In this study, the different saturations of hydrate samples were formed in a cubic hydrate simulator (CHS) filled with silica sand. Subsequently, the hydrate was dissociated by depressurization in conjunction with warm water stimulation using dual horizontal wells. The hydrate dissociation process includes the depressurizing period and the injection period (the constant-pressure period). Hydrate was dissociated simultaneously in the whole reservoir during the depressurizing period. Meanwhile, gas production in the depressurizing period is mainly determined by the depressurizing rate, and it has little relation to the hydrate saturation (when the hydrate saturation ranges from 15.5% to 39.1%). During the injection period, more gas can be produced for the reservoir with the higher hydrate saturation, whereas the highest average gas production rate can be obtained for the reservoir with the middle-higher hydrate saturation. With respect to the gas production in the depressurizing period, gas production in the injection period is the dominant factor affecting the whole production efficiency in the experiment. In addition, the energy ratio only increases with the increase of the hydrate saturation in the prior stage of the constant-pressure period, and the final energy ratio with the middle-higher hydrate saturation is the maximum. Moreover, energy analysis indicates that heat injection plays the leading role for hydrate dissociation in the constant-pressure production period when the initial hydrate saturation is higher than 32.4%. |
format |
Article in Journal/Newspaper |
author |
Feng, Jing-Chun Wang, Yi Li, Xiao-Sen Zhangt, Yu |
author_facet |
Feng, Jing-Chun Wang, Yi Li, Xiao-Sen Zhangt, Yu |
author_sort |
Feng, Jing-Chun |
title |
Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
title_short |
Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
title_full |
Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
title_fullStr |
Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
title_full_unstemmed |
Influence of Hydrate Saturation on Methane Hydrate Dissociation by Depressurization in Conjunction with Warm Water Stimulation in the Silica Sand Reservoir |
title_sort |
influence of hydrate saturation on methane hydrate dissociation by depressurization in conjunction with warm water stimulation in the silica sand reservoir |
publishDate |
2015 |
url |
http://ir.giec.ac.cn/handle/344007/10928 https://doi.org/10.1021/acs.energyfuels.5b01970 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
ENERGY & FUELS http://ir.giec.ac.cn/handle/344007/10928 doi:10.1021/acs.energyfuels.5b01970 |
op_doi |
https://doi.org/10.1021/acs.energyfuels.5b01970 |
container_title |
Energy & Fuels |
container_volume |
29 |
container_issue |
12 |
container_start_page |
7875 |
op_container_end_page |
7884 |
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1766068899308109824 |