An experimental study of two-phase flow behaviour through pipes and hydraulically-fractured rock specimens

doi:10.1016/j.expthermflusci.2018.12.013

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院页岩气与地质工程重点实验室

	An experimental study of two-phase flow behaviour through pipes and hydraulically-fractured rock specimens
	Wanniarachchi, W. A. M.1; Ranjith, P. G.1; Perera, M. S. A.1,2; Rathnaweera, T. D.1; Zhang, C.1; Zhang, D. C.1; Li, Xiao 3; Li, Lihui 4
刊名	EXPERIMENTAL THERMAL AND FLUID SCIENCE
	2019-04-01
卷号	102 页码:325-341
关键词	Foam Two-phase flow Single-phase flow Relative permeability Flow pattern Foam texture
ISSN号	0894-1777
DOI	10.1016/j.expthermflusci.2018.12.013
英文摘要	The use of foam-based fracturing fluids for hydraulic fracturing has been identified as a promising technique to extract unconventional natural gases. However, lack of knowledge of foam properties and the two-phase flow behaviour of foam under high pressure makes it challenging to use in field conditions. Therefore, this comprehensive study was conducted to investigate (1) the properties and flow behaviour of foams, under relatively high-pressure (7 MPa) conditions using a newly-developed high-pressure viewing window and (2) two-phase flow behaviour through fractured rock using the high-pressure triaxial test apparatus. Fracture permeability tests were conducted for a series of confining and injection pressures, to evaluate the relative permeability coefficients. The experimental results show that foam flow can have bubble, plug, slug or disperse flow patterns, based on the gas flow rate, at a constant pressure. Moreover, the results show that, at pressures above 1 MPa, the foam flow is almost homogeneous with a fine texture, which is favourable for proppant transport. The findings of this study reveal that, during foam injection into a fractured rock mass under two-phase conditions, the nitrogen phase dominates the flow rate while having higher relative permeability coefficients than the water phase, irrespective of the confining pressure.
WOS关键词	POROUS-MEDIA ; FOAM FLOW ; PERMEABILITY ; GAS ; CO2 ; PRESSURE ; STRESS ; RESERVOIRS ; SINGLE ; IMPACT
WOS研究方向	Thermodynamics ; Engineering ; Physics
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000457667800028
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90552]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者	Ranjith, P. G.
作者单位	1.Monash Univ, Deep Earth Energy Lab, Dept Civil Engn, Bldg 60, Melbourne, Vic 3800, Australia 2.Univ Melbourne, Dept Infrastruct Engn, Bldg 175, Melbourne, Vic, Australia 3.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wanniarachchi, W. A. M.,Ranjith, P. G.,Perera, M. S. A.,et al. An experimental study of two-phase flow behaviour through pipes and hydraulically-fractured rock specimens[J]. EXPERIMENTAL THERMAL AND FLUID SCIENCE,2019,102:325-341.
APA	Wanniarachchi, W. A. M..,Ranjith, P. G..,Perera, M. S. A..,Rathnaweera, T. D..,Zhang, C..,...&Li, Lihui.(2019).An experimental study of two-phase flow behaviour through pipes and hydraulically-fractured rock specimens.EXPERIMENTAL THERMAL AND FLUID SCIENCE,102,325-341.
MLA	Wanniarachchi, W. A. M.,et al."An experimental study of two-phase flow behaviour through pipes and hydraulically-fractured rock specimens".EXPERIMENTAL THERMAL AND FLUID SCIENCE 102(2019):325-341.