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弹性阻抗
相关语句
  elastic impedance
    The potential analysis of elastic impedance in the lithology and fluid prediction.
    弹性阻抗在岩性与流体预测中的潜力分析
短句来源
    Elastic impedance inversion and its application
    弹性阻抗反演及应用研究
短句来源
    New approximation formula for calculation of elastic impedance in anisotropic media.
    一种新的各向异性弹性阻抗近似公式
短句来源
    Application of joint elastic impedance inversion in the GD Oilfield
    纵横波弹性阻抗联立反演在GD地区的应用(英文)
短句来源
    Development of Elastic Impedance
    浅析弹性阻抗
短句来源
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  “弹性阻抗”译为未确定词的双语例句
    The inversion of flexible impedance and the factors influence on it— base on the connolly formula
    弹性阻抗反演及影响因素分析—基于connolly公式
短句来源
    In order to overcome this limitation, Ma (2003) proposed a generalized, or Reflection Impedance (RI) derived by integrating the reflectivity along a reflection ray path.
    为了克服这一局限性,多位学者相继提出了改进的弹性阻抗公式(Ma 2003;Santos and Tygel,2004)。
短句来源
    3. This thesis also discusses how noise affact seismic inversion by processing and inverting synthetic seismic data with various ratios of signal to noise.
    本文还利用不同信噪比的地震资料进行佐普里兹弹性阻抗反演,讨论噪声对地震反演结果的影响。
短句来源
    The ordinary seismic trace inversion based on the hypothesis of vertical incidence of reflected P-wave can't get reliable velocity or other lithologic information, but using prestack seismic data for stack by partial angular gathers can obtain many seismic sections with AVO characters, where the S/N ratio can also be greatly improved, so partial angular stack gathers can act as basic gathers of e-lastic impedance inversion or simultaneous inversion of P- and S-wave velocities.
    基于反射P波垂直入射假设的常规地震道反演方法不能得到可靠的速度或其他岩性信息,而利用叠前地震资料按部分角度道集叠加后,可以获得多个具有AVO特性的地震剖面,信噪比也得到显著改善,因此角度部分叠加道集可以作为弹性阻抗反演或纵、横波速度同步反演的基础道集记录。
短句来源
    The joint inversion was performed using three or more partial stacks to overcome the singularity of post-stack seismic inversion that can not satisfy the requirements of complex reservoir description and to avoid the instability of the inversion result caused by low signal-noise ratio in the pre-stack gather.
    利用三个或三个以上部分叠加数据,进行纵横波弹性阻抗联立反演,既克服了因叠后地震反演结果单一而不能满足复杂储层描述的需求,又避免了由于叠前道集信噪比低造成反演结果不稳定的缺陷。
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  elastic impedance
AVO gradient data is used for lithofacies interpretation, P- wave data is used for acoustic impedance inversion, S-wave data is used for elastic impedance, and Poisson's ratio data is used for detecting oil and gas.
      
Application of joint elastic impedance inversion in the GD Oilfield
      
For the complicated reservoir description of the GD oilfield, P-wave and S-wave elastic impedance inversion was carried out using pre-stack seismic data to accurately identify the lithology of the reservoir.
      
Lamé parameters inversion based on elastic impedance and its application
      
The Connolly (1999) elastic impedance (EI) equation is a function of P-wave velocity, S-wave velocity, density, and incidence angle.
      
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Routine post-stack seismic trace inversion techniques are affected by many factors. It is difficult to gain satisfied results in practice. Possible reasons of causing wrong inversion results and interpretation pitfalls were analyzed in terms of main technique details of seismic trace inversion, chiefly concentrating on the aspects of noise, assumed conditions, w(t) extraction, transition of time and depth, low frequency component and restrained conditions etc. The concept of Elastic Impedance put forward by...

Routine post-stack seismic trace inversion techniques are affected by many factors. It is difficult to gain satisfied results in practice. Possible reasons of causing wrong inversion results and interpretation pitfalls were analyzed in terms of main technique details of seismic trace inversion, chiefly concentrating on the aspects of noise, assumed conditions, w(t) extraction, transition of time and depth, low frequency component and restrained conditions etc. The concept of Elastic Impedance put forward by Patric Connolly has improved the reflectivity of normal incidence assumption which combines AVO problems and seismic trace inversion method in a skillful way so as to promote the seismic trace inversion method. Moreover, a model of Generalized Elastic Impedance established on this base suiting the routine post-stack, non-zero offset seismic data was put forward by us. Generalized Elastic Impedance which does not only include acoustic impedance but also include lithologic information of P and S-wave velocity. More accurate P and S-wave velocity and fluid, saturation, penetration information can be got by making a further study on joint P-wave and P-SV elastic impedance inversion. This is the new trend for seismic trace inversion.

常规叠后地震道反演技术 ,受多种因素的影响。在实用中 ,很难获得准确的结果。从地震道反演的主要技术环节来看 ,造成地震道反演错误或解释陷井的原因主要集中在噪声、假设条件、子波提取、时深转换、低频分量、约束条件等方面。PatrickConnolly提出的弹性阻抗 (elasticimpedance)的思想 ,改进了反射系数垂直入射假设的错误 ,巧妙地将AVO问题与地震道反演相结合 ,将地震道反演技术向前推进了一步。在此基础上建立的适合常规叠后资料的、非零炮检距纵波资料的广义弹性阻抗 (generalizedelasticimpedance)模型不仅包含波阻抗 ,还包含了纵横波速度等岩性信息。进一步发展纵波与转换波弹性阻抗的联合反演 ,能更准确地获得纵横波速度信息 ,还能获得流体饱和度及渗透特性的信息 ,是地震反演发展的最新方向

Conventional seismic trace inversion method is based on the assumption of P-wave striking interface normally. However,conventional multi-channel seismic data records are oblique reflections,reflection amplitude is the average value of CDP gathers. Using conventional seismic trace inversion method,we can not obtain reliable acoustic impedance (AI) or reservoir properties. Following the idea of Patrick Connolly's (1999) Elastic Impedance (EI),I further approximated the Zoeppritz equation,derived the P-wave reflectivity...

Conventional seismic trace inversion method is based on the assumption of P-wave striking interface normally. However,conventional multi-channel seismic data records are oblique reflections,reflection amplitude is the average value of CDP gathers. Using conventional seismic trace inversion method,we can not obtain reliable acoustic impedance (AI) or reservoir properties. Following the idea of Patrick Connolly's (1999) Elastic Impedance (EI),I further approximated the Zoeppritz equation,derived the P-wave reflectivity recursive formula,suitable for the post-stack and seismic data of oblique reflection,and proposed Generalized Elastic Impedance (GEI). The key problem of forward modeling and inversion of seismic trace is solved better than ever. GEI not only include AI,but also include V P,V S and other lithological parameters. It will have high value when applied in practice. By means of GEI inversion,we can obtain more and more reliable information of fluids,porosity,sand to mud ratio and other lithological. It is helpful to interpret the pitfall in conventional seismic trace inversion and trace integration. It is also helpful to decrease non-uniqueness in conventional seismic trace inversion and improve the accuracy of reservoir prediction.

常规的地震道反演方法建立在反射P波垂直入射假设的基础上 ,而实际地震资料采集时多数是非零炮检距的 ,反射振幅是共中心点道集叠加的结果 .因此 ,利用常规地震道反演方法就不能得到可靠的波阻抗或其他岩性信息 .本文利用PatrickConnolly弹性阻抗的思想 ,通过对Zoeppritz方程的进一步简化 ,推导出适合常规叠后资料的、非零炮检距条件下纵波反射系数递推公式 ,提出了广义弹性阻抗的概念 ,解决了非零炮检距条件下 ,常规叠后地震道正反演的关键问题 .广义弹性阻抗不仅包含波阻抗 ,还包含了纵横波速度等岩性信息 ,具有很好的实用价值 .进行广义弹性阻抗的反演 ,能较常规地震道反演获得更多、更可靠的流体、孔隙度、砂泥含量等信息 ,有助于解释常规地震道反演和道积分剖面中的假象 ,降低反演的多解性 ,提高储层预测的精度 .

The post-stack inversion can’t obtain reliable impedance and other lithologic information. This paper does analysis on an area seismic data using elastic impedance inversion theory. The case indicates that elastic impedance inversion can obtain ideal inversion result and from the inverted impedance section we can extract lithologic parameters which can reflect lithology and fluid character. More information and higher revolntion than traditional invevsion are obtained through the elastic impedance inversion,...

The post-stack inversion can’t obtain reliable impedance and other lithologic information. This paper does analysis on an area seismic data using elastic impedance inversion theory. The case indicates that elastic impedance inversion can obtain ideal inversion result and from the inverted impedance section we can extract lithologic parameters which can reflect lithology and fluid character. More information and higher revolntion than traditional invevsion are obtained through the elastic impedance inversion, and it is more quantitative and fast than AVO inversion.

利用常规叠后波阻抗反演方法不能得到可靠的波阻抗和其它岩性信息.本文运用弹性阻抗反演理论对某地区的地震资料进行了分析研究,应用实例表明,用弹性阻抗反演方法可得到较理想的反演结果,且从反演所得到的波阻抗剖面中能提取出许多岩性参数,这些岩性参数能反映岩性和流体特征.与传统的波阻抗反演相比,弹性阻抗反演具有信息量丰富、分辨率高的特点;与定性的AVO反演相比,该方法达到了定量的程度,而且速度快.

 
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