Coordinated Variation of Contact Angles During Mobilization of Double Liquid-Gas Interfaces in a Microcapillary

doi:10.1007/s11242-020-01386-0

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Coordinated Variation of Contact Angles During Mobilization of Double Liquid-Gas Interfaces in a Microcapillary
	Lei D 3; Lin M(林缅)1,2; Li Y 3; Jiang WB(江文滨)2
刊名	TRANSPORT IN POROUS MEDIA
	2020-03-01
卷号	132 期号:1 页码:183-199
关键词	Bubble blob mobilization Microscale capillary Double interfaces Contact angle hysteresis
ISSN号	0169-3913
DOI	10.1007/s11242-020-01386-0
通讯作者	Lin, Mian(linmian@imech.ac.cn) ; Li, Yun(yunli@mail.xjtu.edu.cn)
英文摘要	Effectively mobilizing displacement and predicting mobilization pressure in a porous-type reservoir filled with bubbles or blobs require the knowledge of variation of contact angles and capillary pressure. A bubble/blob has two interfaces and thus has two contact angles. It has been found that double interfaces cause resistance to displacement, and the resisting pressure rises while one contact angle increasing and the other decreasing during mobilization. To quantitatively explain how the resistance to flow builds up according to the contact angle variations during mobilization, it is assumed that (1) contact points remain unmoved; (2) the volume of a bubble or blob maintains constant; (3) once the interface starts moving at low capillary number, the contact angle remains to be the advancing or receding angle; (4) the viscous effect on pressure drop can be ignored; and (5) the two angles of two interfaces are equal to an equilibrium angle at the initiation of mobilization. A theoretical model is developed based on these assumptions, and the quantitative relationship of the two angles is expressed by an implicit function. Combining Young-Laplace equation, the capillary pressure induced by double interfaces is obtained. The model's prediction is in good agreement with experiments in studies. The equilibrium angle has strong influence on the variation of the two angles. When the equilibrium angle is less than 90 degrees, a relatively greater change in the contact angle at the advancing interface leads to a smaller change in the other one. Otherwise, the opposite is true. The changes of the two angles are equal when the equilibrium angle is 90 degrees. Moreover, a linear trend proposed by a previous investigation is incorporated into the model, to predict the ending of mobilization stage and to predict the maximum mobilization pressure on a given solid surface.
分类号	二类
资助项目	National Natural Science Foundation of China[41574129] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14010304] ; Major National Science and Technology Special Program of China[2017ZX05037-001]
WOS关键词	OIL-RECOVERY ; VISUALIZATION ; PRESSURE ; SURFACE ; FLOW
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000513451300008
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major National Science and Technology Special Program of China
其他责任者	Lin, Mian ; Li, Yun
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81526]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Xian 710049, Shaanxi, Peoples R China;
推荐引用方式 GB/T 7714	Lei D,Lin M,Li Y,et al. Coordinated Variation of Contact Angles During Mobilization of Double Liquid-Gas Interfaces in a Microcapillary[J]. TRANSPORT IN POROUS MEDIA,2020,132(1):183-199.
APA	Lei D,林缅,Li Y,&江文滨.(2020).Coordinated Variation of Contact Angles During Mobilization of Double Liquid-Gas Interfaces in a Microcapillary.TRANSPORT IN POROUS MEDIA,132(1),183-199.
MLA	Lei D,et al."Coordinated Variation of Contact Angles During Mobilization of Double Liquid-Gas Interfaces in a Microcapillary".TRANSPORT IN POROUS MEDIA 132.1(2020):183-199.