Variations in permeability along with interfacial tension in hydrate-bearing porous media

被引：36
|
作者：
Wang, Jiaqi [1 ,2 ]
Zhang, Lunxiang [2 ]
Zhao, Jiafei [2 ]
Ai, Li [2 ]
Yang, Lei [2 ]
机构：
[1] Harbin Engn Univ, Coll Power & Energy Engn, Harbin 150001, Heilongjiang, Peoples R China
[2] Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian, Peoples R China
来源：
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING | 2018年 / 51卷
基金：
中国国家自然科学基金; 国家重点研发计划; 国家自然科学基金重大项目;
关键词：
Natural gas hydrate; Interfacial tension; Permeability; Pore network model; X-ray computed tomography; PORE-NETWORK MODELS; RAY COMPUTED-TOMOGRAPHY; METHANE-HYDRATE; RELATIVE PERMEABILITY; GAS-PRODUCTION; SEDIMENTS; WATER; DEPRESSURIZATION; FLOW;
D O I：
10.1016/j.jngse.2017.12.029
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This study extends our previous studies on the effects of the IFT on the seepage characteristics in hydrate-bearing porous media using pore network model with X-ray computed tomography. The results indicate that the relative permeability to both methane gas and water decreases as IFT increases. And the influence of the IFT on the two-phase relative permeability increases along with the particle size of the porous media. Moreover, the variation in absolute permeability is always positively related to average pore/throat radii in all type of hydrate-bearing porous media. In addition, the capillary pressure decreases along with IFT.
引用
收藏
页码：141 / 146
页数：6
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