Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments
The acoustic characteristics of hydrates are important parameters in geophysical hydrate exploration and hydrate resource estimation. The microscale distribution of hydrate has an important influence on the acoustic response of a hydrate-bearing reservoir. Although microscale hydrate distributions c...
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ftmdpi:oai:mdpi.com:/1996-1073/15/14/4938/ 2023-08-20T04:07:57+02:00 Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments Qingtao Bu Qingguo Meng Jie Dong Chengfeng Li Changling Liu Jinhuan Zhao Zihao Wang Wengao Zhao Jiale Kang Gaowei Hu 2022-07-06 application/pdf https://doi.org/10.3390/en15144938 EN eng Multidisciplinary Digital Publishing Institute H: Geo-Energy https://dx.doi.org/10.3390/en15144938 https://creativecommons.org/licenses/by/4.0/ Energies; Volume 15; Issue 14; Pages: 4938 gas hydrate X-ray computed tomography micro-distribution acoustic property porous media Text 2022 ftmdpi https://doi.org/10.3390/en15144938 2023-08-01T05:37:25Z The acoustic characteristics of hydrates are important parameters in geophysical hydrate exploration and hydrate resource estimation. The microscale distribution of hydrate has an important influence on the acoustic response of a hydrate-bearing reservoir. Although microscale hydrate distributions can be determined using means such as X-ray computed tomography (X-CT), it is difficult to obtain acoustic parameters for the same sample. In this study, we developed an experimental system that integrated pore-scale visualization and an ultrasonic testing system for methane-hydrate-bearing sediments. Simultaneous X-CT observation and acoustic detection could be achieved in the same hydrate sample, which provided a new method for synchronously monitoring microscale distributions during acoustic testing of natural gas hydrate samples. Hydrate formation experiments were carried out in sandy sediments, during which the acoustic characteristics of hydrate-bearing sediments were detected, while X-ray computed tomography was performed simultaneously. This study found that hydrates formed mainly at the gas–water interface in the early stage, mainly in the pore fluid in the middle stage, and came into contact with sediments in the later stage. The development of this experimental device solved the difficult problem of determining the quantitative relationship between the microscale hydrate distribution and the acoustic properties of the reservoir. Text Methane hydrate MDPI Open Access Publishing Energies 15 14 4938 |
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Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
gas hydrate X-ray computed tomography micro-distribution acoustic property porous media |
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gas hydrate X-ray computed tomography micro-distribution acoustic property porous media Qingtao Bu Qingguo Meng Jie Dong Chengfeng Li Changling Liu Jinhuan Zhao Zihao Wang Wengao Zhao Jiale Kang Gaowei Hu Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
topic_facet |
gas hydrate X-ray computed tomography micro-distribution acoustic property porous media |
description |
The acoustic characteristics of hydrates are important parameters in geophysical hydrate exploration and hydrate resource estimation. The microscale distribution of hydrate has an important influence on the acoustic response of a hydrate-bearing reservoir. Although microscale hydrate distributions can be determined using means such as X-ray computed tomography (X-CT), it is difficult to obtain acoustic parameters for the same sample. In this study, we developed an experimental system that integrated pore-scale visualization and an ultrasonic testing system for methane-hydrate-bearing sediments. Simultaneous X-CT observation and acoustic detection could be achieved in the same hydrate sample, which provided a new method for synchronously monitoring microscale distributions during acoustic testing of natural gas hydrate samples. Hydrate formation experiments were carried out in sandy sediments, during which the acoustic characteristics of hydrate-bearing sediments were detected, while X-ray computed tomography was performed simultaneously. This study found that hydrates formed mainly at the gas–water interface in the early stage, mainly in the pore fluid in the middle stage, and came into contact with sediments in the later stage. The development of this experimental device solved the difficult problem of determining the quantitative relationship between the microscale hydrate distribution and the acoustic properties of the reservoir. |
format |
Text |
author |
Qingtao Bu Qingguo Meng Jie Dong Chengfeng Li Changling Liu Jinhuan Zhao Zihao Wang Wengao Zhao Jiale Kang Gaowei Hu |
author_facet |
Qingtao Bu Qingguo Meng Jie Dong Chengfeng Li Changling Liu Jinhuan Zhao Zihao Wang Wengao Zhao Jiale Kang Gaowei Hu |
author_sort |
Qingtao Bu |
title |
Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
title_short |
Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
title_full |
Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
title_fullStr |
Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
title_full_unstemmed |
Integration of Pore-Scale Visualization and an Ultrasonic Test System of Methane Hydrate-Bearing Sediments |
title_sort |
integration of pore-scale visualization and an ultrasonic test system of methane hydrate-bearing sediments |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/en15144938 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Energies; Volume 15; Issue 14; Pages: 4938 |
op_relation |
H: Geo-Energy https://dx.doi.org/10.3390/en15144938 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/en15144938 |
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4938 |
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