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OFFSET: 作品数：395被引量：610H指数：11; 导出分析报告; 相关领域：电子电信更多>>; 相关作者：钟敏周益民朱策单新建汪国平更多>>; 相关机构：中国地震局中国科学院中国矿业大学无锡市广播电视大学更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划国家教育部博士点基金更多>>

Normal moveout for long offset in isotropic media using the Padé approximation被引量：1: 《Applied Geophysics》2016年第4期658-666,738,739,共11页Song Han-Jie Zhang Jin-Hai Yao Zhen-Xing; supported by the National Natural Science Foundation of China(Nos.41130418 and 41374061);the National Major Project of China(No.2011ZX05008-006)and the Youth Innovation Promotion Association CAS(No.2012054); The nomaal 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-dep...; 关键词：Pade approximation long offset normal moveout isotropic medium

Lateral wave-field stacking of seismic Fresnel zones for the generalized-offset case被引量：1: 《Applied Geophysics》2015年第2期235-243,275,276,共11页田楠范廷恩王宗俊蔡文涛; financially supported by the National"Five"major projects(Grant No.2011ZX05024-001); To unify different seismic geometries, the concept of generalized offset is defined and the expressions for Fresnel zones of different order on a plane are presented. Based on wave theory, the equation of the lateral ...; 关键词：OFFSET Fresnel zone wave theory STACKING AMPLITUDE

Topographic effects on long offset transient electromagnetic response被引量：5: 《Applied Geophysics》2011年第4期277-284,370,共9页唐新功胡文宝严良俊; supported by National Natural Science Foundation of China (Nos. 40727001, 40774073, and 40774074);the National Basic Research Programs of China (973 Program) (No. 2007CB209607);the Doctoral Program of Higher Research and Special funds (No. 20070489001); The forward modeling procedure used in this article is formulated with the volume integral equation based on the tensor Green＇s function. The electromagnetic components responses are first calculated in the frequency...; 关键词：THREE-DIMENSION TOPOGRAPHY transient electromagnetic long offset transient electromagnetic （LOTEM）

Shifted first arrival point travel time NMO inversion被引量：2: 《Applied Geophysics》2011年第3期217-224,240,241,共10页谭尘青吴燕冈韩立国巩向博崔杰; sponsored by the National Natural Science Foundation of China (No. 41074075); Serious stretch appears in shallow long offsset signals after NMO correction. In this article we study the generation mechanism of NMO stretch, demonstrate that the conventional travel time equation cannot accurately ...; 关键词：long offset NMO stretch first arrival point travel time equation NMO inversion

Optimized nonhyperbolic moveout correction equation of long-offset seismic data for TI media with an arbitrary spatial orientation: 《Applied Geophysics》2010年第4期336-347,400,共13页郝重涛姚陈张建中; the National Natural Science Foundation of China(Grant No.40874028);the Special Fund (Grant No.2008ZX05008-006-004).; The conventional long-offset nonhyperbolic moveout equation is derived for the transverse isotropic media with a vertical symmetric axis（VTI）.It cannot be extended to the transverse isotropic media with an arbitrary...; 关键词：TI media arbitrary spatial orientation nonhyperbolic moveout equation reflection traveltime long-offset

Migration scheme for imaging offset VSP data within local phase space: 《Applied Geophysics》2010年第1期31-40,99,共11页周艳辉高静怀王保利何洋洋; supported by the National Hi-Tech Research and Development Program of China (Grant No.2006AA09A102-11);the National Natural Science Fund of China (Grant No.40730424 and 40674064); The imaging of offset VSP data in local phase space can improve the image of the subsurface structure near the well.In this paper,we present a migration scheme for imaging VSP data in a local phase space,which uses th...; 关键词：VSP data Gabor-Daubechies tight frame high-frequency asymptotic expansion imaging condition migration artifact

Application of the equivalent offset migration method in acoustic log reflection imaging被引量：6: 《Applied Geophysics》2009年第4期303-310,393,共9页张铁轩陶果李君君王兵王华; supported by the National Natural Science Foundation of China (Grant No.50674098);the 863 Program (Grant No.2006AA06Z207 & 2006AA06Z213);the 973 Program (Grant No.2007CB209601); Borehole acoustic reflection logging can provide high resolution images of nearborehole geological structure. However, the conventional seismic migration and imaging methods are not effective because the reflected wav...; 关键词：acoustic reflection logging common scatter point gather signal processing nearborehole structure imaging

Anisotropic converted wave amplitude-preserving prestack time migration by the pseudo-offset method被引量：1: 《Applied Geophysics》2008年第3期204-211,共8页张丽艳刘洋; In this paper, we use the method of pseudo-offset migration （POM） to complete converted wave pre-stack time migration with amplitude-preservation in an anisotropic medium. The method maps the original traces into co...; 关键词：ANISOTROPIC POM converted wave amplitude-preserving prestack time migration

An approximation to the P-wave reflection coefficient for amplitude variation with long-offset seismic data被引量：1: 《Applied Geophysics》2007年第1期29-36,共8页Wang Pu Zhang Wenpo Hu Tianyue; This research is sponsored by China National Natural Science Foundation （40574050, 40521002） and CNPC Key Research Program （06A 10101）.; In recent years, long-offset exploration has been widely used, especially on marine seismic surveys. Conventional AVO analysis is insufficient for long-offset seismic data. To widen the application range of AVO analys...; 关键词：AVO long-offset Zoeppritz equations Poisson＇s ratio.

Analysis and application of pseudo-offset method in the converted-wave prestack time migration被引量：2: 《Applied Geophysics》2006年第1期18-26,共9页Zhang Liyan Liu Yang; This work is sponsored by the Nation's Key Scientific & Technologic Projects (2003 BA613-09).; Pseudo-offset migration （POM） is a new method for prestack time migration of converted waves that improves on equivalent-offset migration （EOM）. The mapping of POM is different than EOM but the purpose of the two ...; 关键词：converted-wave Pseudo-offset migration equivalent-offset migration time migration NMO correction.

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