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

文献类型：期刊论文

作者Song Han-Jie1,2; Zhang Jin-Hai1; Yao Zhen-Xing1
刊名APPLIED GEOPHYSICS
出版日期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
DOI10.1007/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
WOS记录号WOS:000392907200009
出版者SPRINGER
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)
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.

入库方式： OAI收割

来源：地质与地球物理研究所

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