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The effects of fracture permeability on acoustic wave propagation in the porous media: A microscopic perspective

文献类型：期刊论文

作者Wang, Ding1,3; Wang, Liji2,3; Ding, Pinbo4
刊名ULTRASONICS
出版日期2016-08-01
卷号70页码:266-274
关键词Porous media Equivalent medium theory Permeability Attenuation Dispersion
DOI10.1016/j.ultras.2016.05.013
文献子类Article
英文摘要An illustrative theory is developed to analyze the acoustic wave propagation characteristics in the porous media with anisotropic permeability. We focus here on the role of fracture permeability in the unconsolidated porous media, looking in particular at the compressional P-wave phase velocity and attenuation. Two fluid pressure equilibration characteristic time factors are defined, which are corresponding to crack-pore system and crack-crack system, respectively. The theoretical results show that the dispersion and attenuation characteristics of acoustic wave are affected by porous matrix and fracture permeability simultaneously. Due to the fluid exchange that takes place between fractures and pores dominantly, the influence of the fracture connectivity on the wave propagation is very weak when the permeability of background medium is relatively high. However, correlation between wave propagation and fracture permeability is significant when the matrix permeability at a low level. A second attenuation peak occurs for the fluid flow within fractures in high-frequency region for more and more higher fracture permeability. The exact analytical solutions that are compared to numerical forward modeling of wave propagation in fractured media allow us to verify the correctness of the new model. If there exists another approach for obtaining the connectivity information of background media, we can use this model to analyze qualitatively the permeability of fractures or afford an indicator of in-situ permeability changes in a oil reservoir, for example, fracturing operations. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词FREQUENCY-DEPENDENT ANISOTROPY ; DISCONTINUOUS GALERKIN METHOD ; ELASTIC-WAVES ; FLUID-FLOW ; SEISMIC CHARACTERIZATION ; MECHANICAL-PROPERTIES ; MESOSCALE FRACTURES ; SATURATED ROCKS ; ATTENUATION ; RESERVOIRS
WOS研究方向Acoustics ; Radiology, Nuclear Medicine & Medical Imaging
语种英语
WOS记录号WOS:000377295500031
资助机构National Science and Technology Major Project of the Ministry of Science and Technology of China(2011ZX05005-005 ; National Science and Technology Major Project of the Ministry of Science and Technology of China(2011ZX05005-005 ; National Program on Key Basic Research Project(2014CB239201) ; National Program on Key Basic Research Project(2014CB239201) ; 2011ZX05035-002) ; 2011ZX05035-002) ; National Science and Technology Major Project of the Ministry of Science and Technology of China(2011ZX05005-005 ; National Science and Technology Major Project of the Ministry of Science and Technology of China(2011ZX05005-005 ; National Program on Key Basic Research Project(2014CB239201) ; National Program on Key Basic Research Project(2014CB239201) ; 2011ZX05035-002) ; 2011ZX05035-002)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53438]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.State Key Lab Petr Resource & Prospecting, Beijing 102249, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Ding,Wang, Liji,Ding, Pinbo. The effects of fracture permeability on acoustic wave propagation in the porous media: A microscopic perspective[J]. ULTRASONICS,2016,70:266-274.
APA Wang, Ding,Wang, Liji,&Ding, Pinbo.(2016).The effects of fracture permeability on acoustic wave propagation in the porous media: A microscopic perspective.ULTRASONICS,70,266-274.
MLA Wang, Ding,et al."The effects of fracture permeability on acoustic wave propagation in the porous media: A microscopic perspective".ULTRASONICS 70(2016):266-274.

入库方式： OAI收割

来源：地质与地球物理研究所

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