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DOI10.1016/j.ces.2021.116804
Experimental research on methane hydrate formation in porous media based on the low-field NMR technique
Zhan, Jing; Zhang, Peng; Wang, Yingmei; Wu, Qingbai
发表日期2021
ISSN0009-2509
EISSN1873-4405
卷号244
英文摘要In the experiment, three kinds of sandy soil tests with various particle sizes and starting water substances were chosen for analysis of methane hydrate formation in porous media. In this article, low-field nuclear magnetic resonance (NMR) innovation was utilized to consider methane hydrate the kinetics and to analyse the relationship among the adjustments in water signal force, the temperature and pressure, the various qualities of the T-2 relaxation time, and the substance of unhydrated water. In view of the varieties in the NMR signal intensity, the methane-hydrate formation can be separated into four phases: induction, nucleation, growth, and steadiness. In addition, for the samples with particle size of 0.25-0.5 mm, the content of unhydrated water was higher. At a similar particle size, the content of unhydrated water increments with an increasing initial water content; thusly, low unhydrated water content for the most part exists in little and moderately enormous pores. (C) 2021 Elsevier Ltd. All rights reserved.
英文关键词Methane hydrates; Porous media; Low-field NMR; Unhydrated water; Signal intensity; T-2 relaxation time
语种英语
WOS研究方向Engineering
WOS类目Engineering, Chemical
WOS关键词NUCLEAR-MAGNETIC-RESONANCE ; GAS-HYDRATE ; DISSOCIATION ; WATER ; CO2
WOS记录号WOS:000672809300012
来源期刊CHEMICAL ENGINEERING SCIENCE
来源机构中国科学院西北生态环境资源研究院
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/240280
作者单位[Zhan, Jing; Zhang, Peng; Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Donggang West Rd 320, Lanzhou 730000, Peoples R China; [Zhan, Jing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Yingmei] Lanzhou Univ Technol, Lanzhou 730050, Peoples R China
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Zhan, Jing,Zhang, Peng,Wang, Yingmei,et al. Experimental research on methane hydrate formation in porous media based on the low-field NMR technique[J]. 中国科学院西北生态环境资源研究院,2021,244.
APA Zhan, Jing,Zhang, Peng,Wang, Yingmei,&Wu, Qingbai.(2021).Experimental research on methane hydrate formation in porous media based on the low-field NMR technique.CHEMICAL ENGINEERING SCIENCE,244.
MLA Zhan, Jing,et al."Experimental research on methane hydrate formation in porous media based on the low-field NMR technique".CHEMICAL ENGINEERING SCIENCE 244(2021).
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