Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space
Abstract Natural gas hydrate contains a specific amount of heavy hydrocarbons, such as ethane, propane, etc., aside from the primary guest gas of methane. Although the coexistence of two or even three hydrate structures has been discovered at several hydrate sites, the requisite formation mechanism...
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crwiley:10.1111/1755-6724.14929 2024-06-02T08:10:24+00:00 Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space CAI, Wenjiu ZHAN, Linsen HUANG, Xin LU, Hailong 2022 http://dx.doi.org/10.1111/1755-6724.14929 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-6724.14929 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1755-6724.14929 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Acta Geologica Sinica - English Edition volume 96, issue 2, page 674-679 ISSN 1000-9515 1755-6724 journal-article 2022 crwiley https://doi.org/10.1111/1755-6724.14929 2024-05-03T11:42:07Z Abstract Natural gas hydrate contains a specific amount of heavy hydrocarbons, such as ethane, propane, etc., aside from the primary guest gas of methane. Although the coexistence of two or even three hydrate structures has been discovered at several hydrate sites, the requisite formation mechanism is still not well understood. In‐situ observation of the formation process of mixed methane‐propane hydrate in a confined space was conducted using confocal Raman imaging microscopy. The Raman imaging results reveal that sI methane hydrate and sII mixed methane‐propane hydrate are formed and coexist in the reaction system. In the confined space, the sI hydrate originates from the dissolved gas in water, while the sII hydrate is formed from free gas. The results obtained can help explain the coexistence of sI and sII hydrates found in natural hydrate samples, as well as providing insights into a possible dynamic scenario of hydrate reservoirs in geological history. Article in Journal/Newspaper Methane hydrate Wiley Online Library Acta Geologica Sinica - English Edition 96 2 674 679 |
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English |
description |
Abstract Natural gas hydrate contains a specific amount of heavy hydrocarbons, such as ethane, propane, etc., aside from the primary guest gas of methane. Although the coexistence of two or even three hydrate structures has been discovered at several hydrate sites, the requisite formation mechanism is still not well understood. In‐situ observation of the formation process of mixed methane‐propane hydrate in a confined space was conducted using confocal Raman imaging microscopy. The Raman imaging results reveal that sI methane hydrate and sII mixed methane‐propane hydrate are formed and coexist in the reaction system. In the confined space, the sI hydrate originates from the dissolved gas in water, while the sII hydrate is formed from free gas. The results obtained can help explain the coexistence of sI and sII hydrates found in natural hydrate samples, as well as providing insights into a possible dynamic scenario of hydrate reservoirs in geological history. |
format |
Article in Journal/Newspaper |
author |
CAI, Wenjiu ZHAN, Linsen HUANG, Xin LU, Hailong |
spellingShingle |
CAI, Wenjiu ZHAN, Linsen HUANG, Xin LU, Hailong Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
author_facet |
CAI, Wenjiu ZHAN, Linsen HUANG, Xin LU, Hailong |
author_sort |
CAI, Wenjiu |
title |
Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
title_short |
Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
title_full |
Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
title_fullStr |
Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
title_full_unstemmed |
Raman Micro‐Imaging of the Coexistence of sI and sII Hydrates Formed from a Mixed Methane‐Propane Gas in a Confined Space |
title_sort |
raman micro‐imaging of the coexistence of si and sii hydrates formed from a mixed methane‐propane gas in a confined space |
publisher |
Wiley |
publishDate |
2022 |
url |
http://dx.doi.org/10.1111/1755-6724.14929 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-6724.14929 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1755-6724.14929 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
Acta Geologica Sinica - English Edition volume 96, issue 2, page 674-679 ISSN 1000-9515 1755-6724 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1755-6724.14929 |
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Acta Geologica Sinica - English Edition |
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96 |
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2 |
container_start_page |
674 |
op_container_end_page |
679 |
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1800756270509064192 |