The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China
The environment is seriously threatened by the methane emitted as permafrost melts. Studying deposits of natural gas hydrates that include methane is therefore important. This study presents a novel approach based on the rock Archie formula to discover the porosity and saturation of gas hydrates. Th...
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ftpubmed:oai:pubmedcentral.nih.gov:9345928 2023-05-15T17:56:16+02:00 The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China Lei, Da Fu, Changmin Zhen, Qihui Wang, Zhongxing Wang, Ruo 2022-08-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9345928/ https://doi.org/10.1038/s41598-022-17475-7 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9345928/ http://dx.doi.org/10.1038/s41598-022-17475-7 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Sci Rep Article Text 2022 ftpubmed https://doi.org/10.1038/s41598-022-17475-7 2022-08-07T01:04:41Z The environment is seriously threatened by the methane emitted as permafrost melts. Studying deposits of natural gas hydrates that include methane is therefore important. This study presents a novel approach based on the rock Archie formula to discover the porosity and saturation of gas hydrates. The relationship between resistivity and porosity and the porosity of hydrates was studied, and the results showed that the resistivity of hydrate reservoirs was closely related to porosity and hydrate saturation, and the polarization rate was only related to the concentration of natural gas hydrates and had nothing to do with porosity. Using the multi-channel time domain induced polarization (MTIP) method, the profile with five boreholes in the Muli area of the permafrost area of the Qinghai-Tibet Plateau was observed, and the thickness of the shallow permafrost distribution and the underground structure were inferred based on the resistivity of the MTIP data. The polarization rate and hydrate saturation of the inversion assessed the presence of hydrates in the Muli region. The results show that the MTIP method can be used to detect the thickness of permafrost distribution, determine fault boundaries, reveal the distribution of natural gas transport paths, and evaluate the presence of natural gas hydrates. Text permafrost PubMed Central (PMC) Scientific Reports 12 1 |
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Article Lei, Da Fu, Changmin Zhen, Qihui Wang, Zhongxing Wang, Ruo The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
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Article |
description |
The environment is seriously threatened by the methane emitted as permafrost melts. Studying deposits of natural gas hydrates that include methane is therefore important. This study presents a novel approach based on the rock Archie formula to discover the porosity and saturation of gas hydrates. The relationship between resistivity and porosity and the porosity of hydrates was studied, and the results showed that the resistivity of hydrate reservoirs was closely related to porosity and hydrate saturation, and the polarization rate was only related to the concentration of natural gas hydrates and had nothing to do with porosity. Using the multi-channel time domain induced polarization (MTIP) method, the profile with five boreholes in the Muli area of the permafrost area of the Qinghai-Tibet Plateau was observed, and the thickness of the shallow permafrost distribution and the underground structure were inferred based on the resistivity of the MTIP data. The polarization rate and hydrate saturation of the inversion assessed the presence of hydrates in the Muli region. The results show that the MTIP method can be used to detect the thickness of permafrost distribution, determine fault boundaries, reveal the distribution of natural gas transport paths, and evaluate the presence of natural gas hydrates. |
format |
Text |
author |
Lei, Da Fu, Changmin Zhen, Qihui Wang, Zhongxing Wang, Ruo |
author_facet |
Lei, Da Fu, Changmin Zhen, Qihui Wang, Zhongxing Wang, Ruo |
author_sort |
Lei, Da |
title |
The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
title_short |
The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
title_full |
The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
title_fullStr |
The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
title_full_unstemmed |
The lithological characteristics of natural gas hydrates in permafrost on the Qinghai of China |
title_sort |
lithological characteristics of natural gas hydrates in permafrost on the qinghai of china |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9345928/ https://doi.org/10.1038/s41598-022-17475-7 |
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permafrost |
genre_facet |
permafrost |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9345928/ http://dx.doi.org/10.1038/s41598-022-17475-7 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-022-17475-7 |
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