Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments
Silty-clay reservoirs are a weak point in sand production and sand control studies due to their low economy. However, China's marine natural gas hydrates (NGH) mostly exist in silty-clay sediments, which restrict the sustainable and efficient development of NGH. In order to study the sand produ...
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Online Access: | http://ir.giec.ac.cn/handle/344007/26216 https://doi.org/10.3390/en12224268 |
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/26216 2023-05-15T17:12:05+02:00 Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments Lu, Jingsheng Li, Dongliang He, Yong Shi, Lingli Liang, Deqing Xiong, Youming 2019-11-02 http://ir.giec.ac.cn/handle/344007/26216 https://doi.org/10.3390/en12224268 英语 eng MDPI ENERGIES http://ir.giec.ac.cn/handle/344007/26216 doi:10.3390/en12224268 methane hydrate silty-clay sediments sand production experiments exploitation GAS-PRODUCTION ACCUMULATIONS WELL Energy & Fuels 期刊论文 2019 ftchacadsciegiec https://doi.org/10.3390/en12224268 2022-09-23T14:15:36Z Silty-clay reservoirs are a weak point in sand production and sand control studies due to their low economy. However, China's marine natural gas hydrates (NGH) mostly exist in silty-clay sediments, which restrict the sustainable and efficient development of NGH. In order to study the sand production of hydrate silty-clay sediments, hydrate production experiments in vertical wells and horizontal wells were carried out using a self-developed hydrate sand production and sand control simulation device. The results showed a great difference between the hydrate silty-clay sediments and hydrate sand sediments. The significant differences in production pressure and production temperature between the different layers indicated the low permeability and low heterogeneity of the hydrate silty-clay sediments. The sliding settlement of the overall depression in the horizontal well and overall subsidence in the vertical well of the hydrate silty-clay reservoir would easily lead to silty-clay flow and large-scale sand production. When water rates decreased, the property of "silty-clay sediment filtration and wall building" was found, which formed a "mud cake" around the wellbore. The good strength of adhesion and fracture permeability of the "mud cake" provided ideas for reservoir reformation. This study further discusses sand production and sediment reformation in hydrate silty-clay sediments. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Energies 12 22 4268 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
methane hydrate silty-clay sediments sand production experiments exploitation GAS-PRODUCTION ACCUMULATIONS WELL Energy & Fuels |
spellingShingle |
methane hydrate silty-clay sediments sand production experiments exploitation GAS-PRODUCTION ACCUMULATIONS WELL Energy & Fuels Lu, Jingsheng Li, Dongliang He, Yong Shi, Lingli Liang, Deqing Xiong, Youming Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
topic_facet |
methane hydrate silty-clay sediments sand production experiments exploitation GAS-PRODUCTION ACCUMULATIONS WELL Energy & Fuels |
description |
Silty-clay reservoirs are a weak point in sand production and sand control studies due to their low economy. However, China's marine natural gas hydrates (NGH) mostly exist in silty-clay sediments, which restrict the sustainable and efficient development of NGH. In order to study the sand production of hydrate silty-clay sediments, hydrate production experiments in vertical wells and horizontal wells were carried out using a self-developed hydrate sand production and sand control simulation device. The results showed a great difference between the hydrate silty-clay sediments and hydrate sand sediments. The significant differences in production pressure and production temperature between the different layers indicated the low permeability and low heterogeneity of the hydrate silty-clay sediments. The sliding settlement of the overall depression in the horizontal well and overall subsidence in the vertical well of the hydrate silty-clay reservoir would easily lead to silty-clay flow and large-scale sand production. When water rates decreased, the property of "silty-clay sediment filtration and wall building" was found, which formed a "mud cake" around the wellbore. The good strength of adhesion and fracture permeability of the "mud cake" provided ideas for reservoir reformation. This study further discusses sand production and sediment reformation in hydrate silty-clay sediments. |
format |
Report |
author |
Lu, Jingsheng Li, Dongliang He, Yong Shi, Lingli Liang, Deqing Xiong, Youming |
author_facet |
Lu, Jingsheng Li, Dongliang He, Yong Shi, Lingli Liang, Deqing Xiong, Youming |
author_sort |
Lu, Jingsheng |
title |
Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
title_short |
Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
title_full |
Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
title_fullStr |
Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
title_full_unstemmed |
Experimental Study of Sand Production during Depressurization Exploitation in Hydrate Silty-Clay Sediments |
title_sort |
experimental study of sand production during depressurization exploitation in hydrate silty-clay sediments |
publisher |
MDPI |
publishDate |
2019 |
url |
http://ir.giec.ac.cn/handle/344007/26216 https://doi.org/10.3390/en12224268 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
ENERGIES http://ir.giec.ac.cn/handle/344007/26216 doi:10.3390/en12224268 |
op_doi |
https://doi.org/10.3390/en12224268 |
container_title |
Energies |
container_volume |
12 |
container_issue |
22 |
container_start_page |
4268 |
_version_ |
1766068848874749952 |