The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity

doi:10.1016/j.energy.2019.116051

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity
	Cai, Jianchao ; Zhang, Zhien ; Wei, Wei ; Guo, Dongming ; Li, Shuai ; Zhao, Peiqiang
刊名	ENERGY
	2019
卷号	188 期号:-页码:-
关键词	Permeability-formation factor relation Pore-throat ratio Tortuosity Connectivity Fractal porous media
ISSN号	0360-5442
DOI	10.1016/j.energy.2019.116051
英文摘要	The hydraulic properties of reservoir rocks have a directly impact on the flow path of exchange fluid in geothermal and oil reservoir systems. Estimation of hydraulic properties by means of electrical measurement is convenient and nondestructive in these reservoir systems. The mechanism beneath which the pore structure affects electrical and hydraulic flow in porous media is not yet fully understood. In this study, we present a new permeability-formation factor relation based on pore-throat size model and fractal geometry theory. Furthermore, an updated model accounting for the effect of tortuosity and connectivity is applied to characterize the permeability of porous media. The experimental results show that the pore-throat ratio cannot fully describe the relationship between the permeability and the formation factor without considering tortuosity and connectivity. The combined model including porethroat ratio, tortuosity and connectivity is further proposed to exactly estimate the influence of complex pore structure on the transport behavior associated with electrical parameters. The result also indicates that pore-throat ratio, tortuosity, and connectivity are the three key factors determining hydraulic properties in porous media. This means the estimation of electrical conductivity changes with permeability that depends on accurate characteristic of micro-structural properties of reservoir rocks. (C) 2019 Elsevier Ltd. All rights reserved.
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
WOS记录号	WOS:000505271100101
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14801]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 2.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China; 3.China Univ Geosci, Inst Geophys & Geomat, Wuhan 430074, Hubei, Peoples R China; 4.Ohio State Univ, William G Lowrie Dept Chem & Biomol Engn, Columbus, OH 43210 USA;
推荐引用方式 GB/T 7714	Cai, Jianchao,Zhang, Zhien,Wei, Wei,et al. The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity[J]. ENERGY,2019,188(-):-.
APA	Cai, Jianchao,Zhang, Zhien,Wei, Wei,Guo, Dongming,Li, Shuai,&Zhao, Peiqiang.(2019).The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity.ENERGY,188(-),-.
MLA	Cai, Jianchao,et al."The critical factors for permeability-formation factor relation in reservoir rocks: Pore-throat ratio, tortuosity and connectivity".ENERGY 188.-(2019):-.