气候变化领域集成服务门户(CCPortal): Experimental research on methane hydrate formation in porous media based on the low-field NMR technique

CCPortal

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; Zhang, Peng; Wang, Yingmei; Wu, Qingbai
发表日期	2021
ISSN	0009-2509
EISSN	1873-4405
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
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]. 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).