Permeability determination of hydrate sediments and a new reduction model considering hydrate growth habit

doi:10.1016/j.fuel.2020.118297

	Permeability determination of hydrate sediments and a new reduction model considering hydrate growth habit
	Shen, Pengfei 1,2,3,4; Li, Xiaosen 1,2,3,4; Li, Zhenhe 2,3; Li, Gang 2,3
刊名	FUEL
	2020-11-01
卷号	279 页码:13
关键词	Gas hydrate Permeability Reduction model Growth habit Internal surface area
ISSN号	0016-2361
DOI	10.1016/j.fuel.2020.118297
通讯作者	Li, Zhenhe(lixs@ms.giec.ac.cn) ; Li, Gang(ligang@ms.giec.ac.cn)
英文摘要	The saturation (SH) and growth habit of hydrates in sediments directly affect the evaluation of permeability. This work was devoted to evaluating the growth habit of hydrates in sediments by permeability measurements. The water effective permeability of hydrate sediments with different SH was obtained, and these permeability data were excellent in stability and accuracy. The change of differential pressure of hydrate sediments with water injection was completely recorded, it was a new found that the differential pressure was unstable in the first few minutes, and it is not recommended to employ short-term data to evaluate the permeability of the hydrate sediments. Based on the hypothesis of wedge tetrahedral filling of sediment particles, the growth habits of hydrates were compered in the models of hydrate coating grain and occupying pore center respectively. By analyzing the experimental data with the reduction models in different hydrate growth habits, it was founded that the hydrates were more likely to form in the pore centers rather than coating grains. Finally, the ratio of the internal surface area of pore space with and without hydrate was simplified to an expression related to S-H in a new model of water relative permeability. This model could distinguish the growth habits of hydrate in porous media and provide a more accurate prediction of water relative permeability.
资助项目	Key Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[51676196] ; National Natural Science Foundation of China[51976228] ; 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] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044]
WOS关键词	INDUCED GAS-PRODUCTION ; METHANE-HYDRATE ; POROUS-MEDIA ; RELATIVE PERMEABILITY ; WATER ; DISSOCIATION ; DECOMPOSITION ; DEFORMATION ; RESERVOIR ; SANDY
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000559065300008
资助机构	Key Program of National Natural Science Foundation of China ; 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/344007/27612]
专题	中国科学院广州能源研究所
通讯作者	Li, Zhenhe; Li, Gang
作者单位	1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 4.Chongqing Univ, Sch Resources & Safety Engn, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Shen, Pengfei,Li, Xiaosen,Li, Zhenhe,et al. Permeability determination of hydrate sediments and a new reduction model considering hydrate growth habit[J]. FUEL,2020,279:13.
APA	Shen, Pengfei,Li, Xiaosen,Li, Zhenhe,&Li, Gang.(2020).Permeability determination of hydrate sediments and a new reduction model considering hydrate growth habit.FUEL,279,13.
MLA	Shen, Pengfei,et al."Permeability determination of hydrate sediments and a new reduction model considering hydrate growth habit".FUEL 279(2020):13.