Multiwave inversion of anistropic parameter and PS wave AVO analysis in TTI media

doi:10.6038/j.issn.0001-5733.2012.02.019

	Multiwave inversion of anistropic parameter and PS wave AVO analysis in TTI media
	Xu Shan-Hui 1; Han Li-Guo 1; Guo Jian 2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2012-02-01
卷号	55 期号:2 页码:569-576
关键词	TTI media Thomsen parameters Genetic algorithm AVO inversion
ISSN号	0001-5733
DOI	10.6038/j.issn.0001-5733.2012.02.019
文献子类	Article
英文摘要	In this paper, genetic algorithm is introduced in the process of AVO inversion for anistropic parameters in TTI media. According to the reflection coefficients of PP and PS waves in TTI media, we found the objective function of Thomsen parameters and the dip angle and the azimuth angle of the symmetry in TTI media, determined the anisotropic parameters and the dip angle, azimuth angle of the symmetry from inversion of the reflection coefficients of the PP wave and the PS wave. We analysed the accuracy and stability of the inverse outcome, found that the inverse outcome of PS wave is better than the outcome of PP wave and the veracity of the symmetry clip angle is significantly higher than that of symmetry azimuth angle. By the forward modeling we explained why this happened. Finally, by the research of PS wave AVO gradient, a method is proposed by which we can qualitatively analyze the symmetry dip angle of TTI media.
WOS关键词	ORTHORHOMBIC MEDIA ; ELASTIC MEDIA ; COEFFICIENTS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000301332500019
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84624]
专题	中国科学院地质与地球物理研究所
通讯作者	Xu Shan-Hui
作者单位	1.Jilin Univ, Coll Geoexplorat Sci & Technol, Changchun 130026, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Xu Shan-Hui,Han Li-Guo,Guo Jian. Multiwave inversion of anistropic parameter and PS wave AVO analysis in TTI media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(2):569-576.
APA	Xu Shan-Hui,Han Li-Guo,&Guo Jian.(2012).Multiwave inversion of anistropic parameter and PS wave AVO analysis in TTI media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(2),569-576.
MLA	Xu Shan-Hui,et al."Multiwave inversion of anistropic parameter and PS wave AVO analysis in TTI media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.2(2012):569-576.