Experimental research on methane hydrate formation in porous media based on the low-field NMR technique

doi:10.1016/j.ces.2021.116804

	Experimental research on methane hydrate formation in porous media based on the low-field NMR technique
	Zhan, Jing 1,2; Zhang, Peng 2; Wang, Yingmei 3; Wu, Qingbai 2
刊名	CHEMICAL ENGINEERING SCIENCE
	2021-11-23
卷号	244
关键词	Methane hydrates Porous media Low-field NMR Unhydrated water Signal intensity T-2 relaxation time
ISSN号	0009-2509
DOI	10.1016/j.ces.2021.116804
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.
WOS研究方向	Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000672809300012
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148981]
专题	能源与动力工程学院
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Donggang West Rd 320, Lanzhou 730000, Peoples R China; 3.Lanzhou Univ Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	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]. CHEMICAL ENGINEERING SCIENCE,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).