An efficient seismic modeling in viscoelastic isotropic media

doi:10.1190/GEO2013-0439.1

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 efficient seismic modeling in viscoelastic isotropic media
	Yang, Renhu 1,2; Mao, Weijian 1,2; Chang, Xu 3
刊名	GEOPHYSICS
	2015
卷号	80 期号:1 页码:T63-T81
DOI	10.1190/GEO2013-0439.1
文献子类	Article
英文摘要	Energy is absorbed and attenuated when seismic waves propagate in real earth media. Hence, the viscoelastic medium needs to be considered. There are many ways to construct the viscoelastic body, in which the generalized standard linear viscoelastic body is the most representative one. For viscoelastic wave propagation and imaging, it is very important to obtain a compact and efficient viscoelastic equation. Because of this, we derived a set of simplified viscoelastic equations in isotropic media on the basis of the standard linear solid body and the constitutive relation for a linear viscoelastic isotropic solid. The simplified equations were composed of the linear equations of momentum conservation, the stress-strain relations, and the memory variable equations. During the derivation of the equations, the Lame differentiation matrix, which has a similar form to the stiffness matrix and indicates the relations between viscoelastic and elastic stiffness matrices, was introduced to simplify the memory variable equations. Analogous to the elastic equations, the simplified equations have symmetrically compact forms and are very useful for efficient viscoelastic modeling, migration, and inversion. Applied to a 2D simple model and the 2D SEG/EAGE salt model, the results show that our simplified equations are more efficient in computation than Carcione's equations.
WOS关键词	WAVE-PROPAGATION
WOS研究方向	Geochemistry & Geophysics
语种	英语
WOS记录号	WOS:000352105900048
资助机构	Innovation Project of the Chinese Academy of Sciences, National Science Foundation of China(41474120) ; Innovation Project of the Chinese Academy of Sciences, National Science Foundation of China(41474120) ; Collaboration Project of Seismic Imaging in Elastic Media of China National Petroleum Corporation (CNPC) ; Collaboration Project of Seismic Imaging in Elastic Media of China National Petroleum Corporation (CNPC) ; Innovation Project of the Chinese Academy of Sciences, National Science Foundation of China(41474120) ; Innovation Project of the Chinese Academy of Sciences, National Science Foundation of China(41474120) ; Collaboration Project of Seismic Imaging in Elastic Media of China National Petroleum Corporation (CNPC) ; Collaboration Project of Seismic Imaging in Elastic Media of China National Petroleum Corporation (CNPC)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62581]
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
作者单位	1.Chinese Acad Sci, Inst Geodesy & Geophys, Ctr Computat & Explorat Geophys, Wuhan, Peoples R China 2.State Key Lab Geodesy & Earths Dynam, Wuhan, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Renhu,Mao, Weijian,Chang, Xu. An efficient seismic modeling in viscoelastic isotropic media[J]. GEOPHYSICS,2015,80(1):T63-T81.
APA	Yang, Renhu,Mao, Weijian,&Chang, Xu.(2015).An efficient seismic modeling in viscoelastic isotropic media.GEOPHYSICS,80(1),T63-T81.
MLA	Yang, Renhu,et al."An efficient seismic modeling in viscoelastic isotropic media".GEOPHYSICS 80.1(2015):T63-T81.