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转换波反射系数
相关语句
  converted wave reflection coefficient
     P-SV converted wave reflection coefficient and field acquisition geometry design
     P-SV转换波反射系数与野外采集观测系统设计
短句来源
     Starting from the approximation of power series of P-SV converted wave reflection coefficient,the paper gave the approximations of P-SV converted wave reflection coefficient represented by multi-composition of different parameters and explored the theory and methods using these approximations for AVO weighted stack parameters inversion.
     本文从 P- SV转换波反射系数幂级数近似公式出发 ,给出了多个由不同参数组合表示的 P- SV转换波反射系数近似式 ,并探讨了利用这些近似式进行 AVO加权叠加参数反演的理论和方法。
短句来源
  “转换波反射系数”译为未确定词的双语例句
     Comparison to several approximate reflection coefficient expressions of P-SV converted wave.
     几种P-SV转换波反射系数近似公式的比较
短句来源
     and it is added to the low-frequency content of converted-wave velocity to form satisfactory converted-wave velocity.
     然后利用转换波反射系数的速推关系,求得转换波速度的相对分量,加上转换波速度的低频成分,即可求得转换波速度。
短句来源
     Meanwhile,the process of using the approximate formula for lithologic parameter inversion has been deeply discussed from three aspects separately:converted wave reflectivity in different representative forms,AVO weighted stack method for P SV converted wave and AVO simultaneous inversion of PP wave and P SV wave.
     以新的近似公式为基础 ,文中分别从不同岩性参数表示的转换波反射系数、P- SV转换波的 AVO加权叠加方法及 P- P波和 P- SV波AVO联合反演等三个方面深入讨论了利用该近似公式进行岩性参数反演的过程
短句来源
     Approximate expressions are applicable to AVO inversion, such as P-P, P-SV, jointed inversion P-P and P-SV. This article summarizes three styles of AVO attribution inversions of converted wave and analyzes feature and precision respectively, preparing for simultaneous inversion of P-P and P-SV.
     为此,对P-SV转换波反射系数近似公式进行了讨论和总结,并用理论模型对近似公式的特点和精度进行了分析。
短句来源
     However, the use of convolution model is to deduce recursion formula of the reflection for the converted wave.
     而利用褶积模型理论解决转换波问题的关键是建立转换波反射系数递推公式。
短句来源
更多       
  相似匹配句对
     STATICS OF CONVERTED WAVE
     转换的静校正
短句来源
     and the even function of raypath parameter p for non-converted wave.
     非转换反射系数和透射系数是射线参数p的偶函数.
短句来源
     The New Methods of Converted Wave Statics
     转换静校正的新方法
短句来源
     P-SV converted wave reflection coefficient and field acquisition geometry design
     P-SV转换反射系数与野外采集观测系统设计
短句来源
     Comparison to several approximate reflection coefficient expressions of P-SV converted wave.
     几种P-SV转换反射系数近似公式的比较
短句来源
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In this paper, a set of analytic solutions to reflection and transmission is derived, which are suitable for P, SV and SH waves incidence on any possible interfaces composed of solid, liquid, gas and vaccum, such as solid-solid, solid-liquid, liquid-liquid and free interfaces etc. So the reflection and transmission equations, which were established by their boundary conditions and were regarded as no relation to each other are integrated. The difference of dynamics between converted wave and non-converted wave...

In this paper, a set of analytic solutions to reflection and transmission is derived, which are suitable for P, SV and SH waves incidence on any possible interfaces composed of solid, liquid, gas and vaccum, such as solid-solid, solid-liquid, liquid-liquid and free interfaces etc. So the reflection and transmission equations, which were established by their boundary conditions and were regarded as no relation to each other are integrated. The difference of dynamics between converted wave and non-converted wave is illustrated with the solutions, and the conclusion is that for elastic plane waves incidence on different boundary conditions, the coefficients of reflection and transmission are the odd function of raypath parameter p for converted wave; and the even function of raypath parameter p for non-converted wave. Theoretical investigation has shown that amplitude versus angle of incidence (AVA) is comprised in reflected, transmitted and converted waves. Based on the properties of odd and even functions, no wave conversion occurs at normal incidence, and the conclusion offers a new way for the simplification of Zoeppritz equations and for the extension of AVA analysis in seismic exploration.

本文对Aki固体-固体分界面的反射和透射公式进行适当变换,使之成为一组适合不同坐标系下,固体、液体、气体和真空之间所有可能形成的分界面上,入射P、SV和SH波所形成的反射和透射公式,从而把不同边界条件的反射和透射方程统一起来,并且阐明了转换波和非转换波动力学特征的差异.指出:在不同弹性介质分界面上入射平面弹性波,转换波的反射系数和透射系数是射线参数p的奇函数;非转换波的反射系数和透射系数是射线参数p的偶函数.根据奇函数和偶函数的性质可见:垂直入射时不存在转换波.同时也为简化Zoeppricz方程,开展AVO分析打开新思路.

I sketch out the following points. (1)·My unified formulas for reflection and transmission of plane elastic wave. ·Dynamic difference between converted wave and unconverted wave. ·The reflection and transmission coefficients of plane elastic and converted waves incident upon an interface between different elastic media are the odd functions of ray parameter p respectively. ·The reflection and transmission coefficients of unconverted wave are the even function of ray parameter p. (2)·Some power series type formulas...

I sketch out the following points. (1)·My unified formulas for reflection and transmission of plane elastic wave. ·Dynamic difference between converted wave and unconverted wave. ·The reflection and transmission coefficients of plane elastic and converted waves incident upon an interface between different elastic media are the odd functions of ray parameter p respectively. ·The reflection and transmission coefficients of unconverted wave are the even function of ray parameter p. (2)·Some power series type formulas for reflection and transmission of plane elastic wave, which include Aki's and Shuey's formulas that are widely used nowadays. ·These new formulas have more definite physical meaning, clearer lithology property,simpler form and easier separation of variates than other's formulas. ·They broaden the application of AVO technique, favour better lithology parameter inversion and advantage separating P wave from S wave. (3)·My AVO filtering concept that copes with the problem existing in seismic horizontal stacking. ·My AVO curve filtering, which is a new processing method for obtaining amplitude fidelity,high resolution and high S/N ratio. ·It is pointed out that traditional CDP stacking concept may be forsaken in more reliable new lithology analysis, which is the development tendency of seismic exploration. The principles and applications of these new methods are illustrated at the conclusion of the article.

本文阐述了如下内容:①提出了平面弹性波反射和透射的统一公式,并阐明了转换波和非转换波动力学特征的差异。指出,“在不同弹性介质分界面上入射平面弹性波,转换波的反射系数和透射系数是射线参数p的奇函数;非转换波的反射系数和透射系数是射线参数p的偶函数”。②作为上述结论的直接应用,本文提出一组以奇偶幂级数形式表示的平面弹性波反射和透射的近似公式,包括目前广泛用于地震勘探的Aki公式和Shuey公式。与前人的公式相比,本文公式具有物理意义明确、岩性关系清晰、形式简洁和易于分离变量等优点。新的近似公式扩展了AVO分析的应用领域、易于实现更为全面的岩性参数反演,并可分离纵波和横波。③针对地震勘探中的水平叠加技术存在的问题,本文提出了AVO滤波的概念,发展了一种振幅保真、高分辨率、高信噪比的处理新方法——AVO曲线拟合滤波,并且指出更为真实的岩性分析方法必须抛弃传统的CDP叠加概念,这是地震勘探的必然趋势。文中最后以实例说明了这些新的处理方法的原理和应用。

The essential of studying the forward and inverse problems of converted wave with the use of convolution model is to deduce recursion formula of the reflection coefficient. The practical recursion formula of the reflection coefficient is derived from further simplified Zoeppritz equation. Then, the recursion formulae for computing converted-wave velocity, ratio of compressional wave velocity to shear wave velocity, and Poisson ratio are obtained also.Having seismic wavelet, we may use convolution model to produce...

The essential of studying the forward and inverse problems of converted wave with the use of convolution model is to deduce recursion formula of the reflection coefficient. The practical recursion formula of the reflection coefficient is derived from further simplified Zoeppritz equation. Then, the recursion formulae for computing converted-wave velocity, ratio of compressional wave velocity to shear wave velocity, and Poisson ratio are obtained also.Having seismic wavelet, we may use convolution model to produce synthetic seismogram of converted wave, which may be taken to calibrate the horizons of converted-wave section- The deconvolution processing of converted-wave section brings the reflection coefficient series. Then, relative component of convertedwave velocity can be estimated by using recursion formula of the reflection coefficient;and it is added to the low-frequency content of converted-wave velocity to form satisfactory converted-wave velocity.The application conditions of the forward and inversion methods are detailed here. Modeling computation proves the method correct.

利用褶积模型研究转换波正、反演问题的关键是建立转换反射系数递推公式。本文在前人工作的基础上,通过对Zoeppritz方程的进一步简化,给出了实用的转换反射系数递推公式,进而可得到求取转换波速度、纵横渡速度比、油松比等参数的递推公式。如果已知地震子波,就能通过褶积模型方便地得到转换波入工会成记录,并可将它用于转换波剖面的层位标定;通过对转换波剖面的反褶积处理,就能得到转换波反射系数序列;然后利用转换波反射系数的速推关系,求得转换波速度的相对分量,加上转换波速度的低频成分,即可求得转换波速度。文章还给出了转换波正、反演方法的适用条件;通过模型试算,证明了本文方法的正确性。

 
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