Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands

doi:10.1016/j.ijheatmasstransfer.2021.121289

GIEC OpenIR

	Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands
	He, Juan 1,2,4; Li, Xiaosen1,2,3,5 ; Chen, Zhaoyang 1,2,3,5; You, Changyu 1,2,4; Yan, Kefeng1,2,3 ; Xia, Zhiming 1,2,3; Li, Qingping 5
	2021-08-01
发表期刊	INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
ISSN	0017-9310
卷号	174 页码:12
通讯作者	Chen, Zhaoyang(chenzy@ms.giec.ac.cn)
摘要	The effect of hydrate distribution on the effective thermal conductivity changes of the actual hydrate-bearing sediments is uncertain. To define this effect, in the hydrate-bearing quartz sands, the effective thermal conductivity was measured by the transient hot-wire method, and hydrate distribution was analyzed by the electrical resistance changes. At first, the effective thermal conductivity changes were investigated from gas saturation, gas pressure, water saturation, water pressure, and temperature. Afterward, in three kinds of hydrate formation processes, compared with hydrate distribution, the changing trends of the effective thermal conductivity at five measuring points were analyzed. The results showed that the effective thermal conductivity was increased with decreasing gas saturation and increasing water saturation or water pressure, and impacted slightly by gas pressure and temperature. Moreover, at five measuring points, the non-uniform hydrate distribution caused different changing trends of the effective thermal conductivity during hydrate formation. In the excess-water setting, an increasing trend was only observed at some local measuring point. The decreasing trends at the most of the measuring points were governed by the reduced water distribution. But in the excess-gas setting, at the most of the measuring points, this increasing trend was observed and controlled by the enlarged hydrate distribution. Besides, for some actual sediments in the excess-water setting, hydrate distribution may be not the key factor of the effective thermal conductivity changes, and further studies were required. This research could offer some valuable reference to the thermal properties in the actual sediments. (C) 2021 Elsevier Ltd. All rights reserved.
关键词	Hydrate distribution Water saturation Gas saturation Hydrate formation Electrical resistance Effective thermal conductivity
DOI	10.1016/j.ijheatmasstransfer.2021.121289
关键词[WOS]	GAS-PRODUCTION ; METHANE HYDRATE ; HEAT ; DEPRESSURIZATION ; DISSOCIATION ; STIMULATION ; CONVECTION ; SEDIMENTS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51576202] ; National Natural Science Foundation of China[51736009] ; National Key R&D Program of China[2016YFC0304002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Guangdong Special Support Program[2019BT02L278]
WOS研究方向	Thermodynamics ; Engineering ; Mechanics
项目资助者	National Natural Science Foundation of China ; National Key R&D Program of China ; Special Project for Marine Economy Development of Guangdong Province ; Guangdong Special Support Program
WOS类目	Thermodynamics ; Engineering, Mechanical ; Mechanics
WOS记录号	WOS:000647617700006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/33105
专题	中国科学院广州能源研究所
通讯作者	Chen, Zhaoyang
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.CNOOC Res Inst, State Key Lab Nat Gas Hydrates, Beijing 100028, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	He, Juan,Li, Xiaosen,Chen, Zhaoyang,et al. Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands[J]. INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,2021,174:12.
APA	He, Juan.,Li, Xiaosen.,Chen, Zhaoyang.,You, Changyu.,Yan, Kefeng.,...&Li, Qingping.(2021).Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands.INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER,174,12.
MLA	He, Juan,et al."Effect of hydrate distribution on effective thermal conductivity changes during hydrate formation in hydrate-bearing quartz sands".INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER 174(2021):12.