Coupling effect of porosity and hydrate saturation on the permeability of methane hydrate-bearing sediments

doi:10.1016/j.fuel.2020.117425

	Coupling effect of porosity and hydrate saturation on the permeability of methane hydrate-bearing sediments
	Shen, Pengfei 1,2,3,4; Li, Gang 3,4; Li, Bo 1,2; Li, Xiaosen 1,2,3,4
刊名	FUEL
	2020-06-01
卷号	269 页码:11
关键词	Gas hydrate Permeability Reduction model Porosity Porous media
ISSN号	0016-2361
DOI	10.1016/j.fuel.2020.117425
通讯作者	Li, Xiaosen(lixs@ms.giec.ac.cn)
英文摘要	The water effective permeability (k(w)) of the methane hydrate-bearing sediments is a key parameter in the investigation of natural gas exploitation, and it is closely related to hydrate saturation (S-H) and the initial porosity of sediments. In this work, the effect of S-H on the k(w) were systematically investigated in different initial porosities of fine quartz sands. The results show that the initial porosity of sediments has significant influence on the k(w) of the sediments with and without methane hydrates, and the hindrance of methane hydrates was more pronounced in the sediments with higher initial porosity. The stability and decomposition process of hydrates in this study could be clearly measured by the differential pressure of the sediments, and the stability of hydrates during the permeability measurement was more than 3 h, which was new record in permeability measurement. Finally, a new reduction empirical model on the basis of simple cubic model and oblique cubic model was integrated, and the effect of initial porosity of sediments on water relative permeability could be eliminated. This model could provide a more accurate prediction of the permeability of hydrate reservoirs with the porosity variation of the sediment.
资助项目	National Natural Science Foundation of China[51676196] ; National Natural Science Foundation of China[51976228] ; National Natural Science Foundation of China[51736009] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-JSC028] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC033] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH041] ; National Key R&D Program of China[2017YFC0307306] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002]
WOS关键词	GAS-HYDRATE ; POROUS-MEDIA ; NATURAL-GAS ; RELATIVE PERMEABILITY ; WATER PERMEABILITY ; SAND ; DEFORMATION ; DECOMPOSITION ; ACCUMULATIONS ; MODELS
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000520021800018
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; Special Project for Marine Economy Development of Guangdong Province
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26718]
专题	中国科学院广州能源研究所
通讯作者	Li, Xiaosen
作者单位	1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 2.Chongqing Univ, Sch Resources & Safety Engn, Chongqing 400044, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Shen, Pengfei,Li, Gang,Li, Bo,et al. Coupling effect of porosity and hydrate saturation on the permeability of methane hydrate-bearing sediments[J]. FUEL,2020,269:11.
APA	Shen, Pengfei,Li, Gang,Li, Bo,&Li, Xiaosen.(2020).Coupling effect of porosity and hydrate saturation on the permeability of methane hydrate-bearing sediments.FUEL,269,11.
MLA	Shen, Pengfei,et al."Coupling effect of porosity and hydrate saturation on the permeability of methane hydrate-bearing sediments".FUEL 269(2020):11.