Normal moveout for long offset in isotropic media using the Pade approximation

doi:10.1007/s11770-016-0587-4

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 > 中国科学院地球与行星物理重点实验室

	Normal moveout for long offset in isotropic media using the Pade approximation
	Song Han-Jie 1,2; Zhang Jin-Hai 1; Yao Zhen-Xing 1
刊名	APPLIED GEOPHYSICS
	2016-12-01
卷号	13 期号:4 页码:658-666
关键词	Pade Approximation Long Offset Normal Moveout Isotropic Medium
ISSN号	1672-7975
DOI	10.1007/s11770-016-0587-4
文献子类	Article
英文摘要	The normal moveout correction is important to long-offset observations, especially deep layers. For isotropic media, the conventional two-term approximation of the normal moveout function assumes a small offset-to-depth ratio and thus fails at large offset-to-depth ratios. We approximate the long-offset moveout using the Pade approximation. This method is superior to typical methods and flattens the seismic gathers over a wide range of offsets in multilayered media. For a four-layer model, traditional methods show traveltime errors of about 5 ms for offset-to-depth ratio of 2 and greater than 10 ms for offset-to-depth ratio of 3; in contrast, the maximum traveltime error for the [3, 3]-order Pade approximation is no more than 5 ms at offset-to-depth ratio of 3. For the Cooper Basin model, the maximum offset-to-depth ratio for the [3, 3]-order Pade approximation is typically double of those in typical methods. The [7, 7]-order Pade approximation performs better than the [3, 3]-order Pade approximation.
WOS关键词	REFLECTION TRAVEL-TIMES ; BOOTSTRAPPED DIFFERENTIAL SEMBLANCE ; VELOCITY ANALYSIS ; NONHYPERBOLIC MOVEOUT ; INVERSION ; EQUATIONS ; SPECTRA ; SERIES
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000392907200009
资助机构	National Natural Science Foundation of China(41130418 ; National Major Project of China(2011ZX05008-006) ; Youth Innovation Promotion Association CAS(2012054) ; 41374061) ; National Natural Science Foundation of China(41130418 ; National Major Project of China(2011ZX05008-006) ; Youth Innovation Promotion Association CAS(2012054) ; 41374061) ; National Natural Science Foundation of China(41130418 ; National Major Project of China(2011ZX05008-006) ; Youth Innovation Promotion Association CAS(2012054) ; 41374061) ; National Natural Science Foundation of China(41130418 ; National Major Project of China(2011ZX05008-006) ; Youth Innovation Promotion Association CAS(2012054) ; 41374061)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53122]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者	Zhang Jin-Hai
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Song Han-Jie,Zhang Jin-Hai,Yao Zhen-Xing. Normal moveout for long offset in isotropic media using the Pade approximation[J]. APPLIED GEOPHYSICS,2016,13(4):658-666.
APA	Song Han-Jie,Zhang Jin-Hai,&Yao Zhen-Xing.(2016).Normal moveout for long offset in isotropic media using the Pade approximation.APPLIED GEOPHYSICS,13(4),658-666.
MLA	Song Han-Jie,et al."Normal moveout for long offset in isotropic media using the Pade approximation".APPLIED GEOPHYSICS 13.4(2016):658-666.