助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   波动方程叠前深度偏移 的翻译结果: 查询用时:0.011秒
图标索引 在分类学科中查询
所有学科
地质学
地球物理学
更多类别查询

图标索引 历史查询
 

波动方程叠前深度偏移
相关语句
  wave equation pre stack depth migration
     A detailed review on the plane wave migration method of wave equation pre stack depth migration is presented in this paper, to show why plane wave migration method can improve the computational efficiency of wave equation pre stack depth migration, which has not been reported before.
     对波动方程叠前深度偏移中的平面波方法进行了深入的剖析 ,指出了平面波偏移方法能提高偏移计算效率的原因所在 ,这也是前人未曾涉及的。
短句来源
     The traveling time calculating technology is the core of the wave equation pre stack depth migration. The calculating precision and efficiency of the ray tracing have great effect on the quality and practicality of the medium imaging.
     旅行时计算技术是基于波动方程叠前深度偏移方法的核心内容 ,射线跟踪的数值计算精度和效率直接影响着介质成像质量和实用化。
短句来源
  “波动方程叠前深度偏移”译为未确定词的双语例句
     Performance optimization of wave equation prestack depth migration package on 64-bit cluster computing platform
     64位集群计算平台波动方程叠前深度偏移的性能优化
短句来源
     Application of Rotation Transform and Viterbi Algorithm in Prestack Depth Migration Preprocessing of Wave Equation
     旋转变换和viterbi算法在波动方程叠前深度偏移预处理中的应用
短句来源
     Taking the package running on 2. 6GHz Xeon system as benchmark, the performance of the optimized wave equation prestack depth migration package increases about 9 times on 1. 4GHz Itanium2 system.
     以原来基于2.6 GHz Xeon系统上的软件运行效率作为基准,在基于1.4 GHz Itanium2的系统上,经过优化的波动方程叠前深度偏移程序其计算性能提高了9倍左右。
短句来源
     In order to improve the calculation efficiency of prestack depth migration with wave equation, we apply the synthesis plane wave technology introduced by Berkhout(1992) to Rytov approximation.
     作者把 Berkhout( 1 992 )提出的合成平面波技术应用于线性 Rytov近似叠前深度偏移 ,提高了波动方程叠前深度偏移的计算效率。
短句来源
     Direct continuation method based on wave equation for prestack depth migration
     直接下延法波动方程叠前深度偏移
短句来源
更多       
  相似匹配句对
     Wave Equation Plane-wave Depth Migration
     波动方程平面波深度偏移
短句来源
     Practical methods for 2-D wave equation prestack depth migration.
     实用化的二维波动方程叠前深度偏移
短句来源
     PRESTACK DEPTH MIGRATION BY WAVE EQUATION FINITE DIFFERENCE
     波动方程有限差分法叠前深度偏移
短句来源
     Wave Equation Prestack Depth Migration and Its Application Study
     波动方程叠前深度偏移及其应用研究
短句来源
     WAVE EQUATION BASED PRESTACK DEPTH MIGRATION USING GENERALIZED SCREEN PROPAGATOR
     基于波动方程的广义屏叠前深度偏移
短句来源
查询“波动方程叠前深度偏移”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


Starting from 3 D acoustic equation and by introducing reference velocity,the paper deduced formulae of refraction item,and diffraction item and optimized and expanded the later,finally prestack depth migration equation of VSP data and its difference form adapting to any condition of variable velocity has been obtained.Error compensation of finite difference algorithm and condition of wavefield imaging has been discussed in the paper.In a certain imaging condition and based on linear stack principle on wavefield...

Starting from 3 D acoustic equation and by introducing reference velocity,the paper deduced formulae of refraction item,and diffraction item and optimized and expanded the later,finally prestack depth migration equation of VSP data and its difference form adapting to any condition of variable velocity has been obtained.Error compensation of finite difference algorithm and condition of wavefield imaging has been discussed in the paper.In a certain imaging condition and based on linear stack principle on wavefield propagation,the complete seismic imaging technique stereoscopic seismic imaging that migrates surface seismic record,VSP record and cross hole record into same imaging space has been proposed.The nature of stereoscopic seismic imaging is that imaging process of surface seismic data,VSP data and reflected seismic data in the hole can be unified a pre stack depth migration process of wave equation and imaging resolution of each data can output independently at the same time. The results of model test show that due to different illuminant scope on object by each survey in process of stereoscopic seismic imaging,the image of geologic object can be strengthened and compensated and becomes more subtle.

,徐蔚亚 ,王建民 ,马在田 .VSP数据波动方程叠前深度偏移成像及立体地震成像 .石油地球物理勘探 ,2 0 0 1,36 (5 ) :5 17~ 5 2 5  本文从三维声波方程出发 ,通过引入参考速度 ,推导出折射项和绕射项方程 ,并对绕射项进行优化展开 ,得到适应任意变速情况下的 VSP数据波动方程叠前深度偏移方程及其差分格式 ;讨论了有限差分法的误差补偿、波场成像条件 ;基于波场传播的线性叠加原理 ,在一定成像条件下 ,提出了把地面地震记录、VSP记录及井间地震记录偏移到同一成像空间的完整的地震成像方法——立体地震成像。立体地震成像的实质是 :地面地震数据、VSP数据及井中反射地震数据的成像过程可以统一成一个波动方程叠前深度偏移过程 ,同时 ,每种数据的成像结果也可以单独输出。模型试算结果表明 ,在立体地震成像过程中 ,每一种观测方式对目标地质体的照明范围不同 ,它们对目标地质体的成像互为补充与加强 ,使得目标地质体的成像更加精细

Limited aperture will cause recording footprint in wave equation prestack migration and need large computation quantity through padding the image volume. To accelerate the calculation and reduce migration artifacts, technique of synthetic aperture is need. The method of AMO, DMO and SOM have shortcoming of complexity on imaging theory though they have advantages of simpty on synthetic data. Area shot method has advantages of simplicity on imaging theory and on synthetic data, but they will work on the case of...

Limited aperture will cause recording footprint in wave equation prestack migration and need large computation quantity through padding the image volume. To accelerate the calculation and reduce migration artifacts, technique of synthetic aperture is need. The method of AMO, DMO and SOM have shortcoming of complexity on imaging theory though they have advantages of simpty on synthetic data. Area shot method has advantages of simplicity on imaging theory and on synthetic data, but they will work on the case of small amplitude ratio of far channel and near channel. in the case of land 3d seismic acquisition, the range of crossline is too short to fit the condition of area shot synthetics. Least-squares principle is apply in imaging theory in order to introduce the area shot method for land 3d seismic acquisition . In order to for solve problem of complex hydrocarbon reservoir, the computation resources needed, and the imaging result, we conduct a experiment of area shot method through 3d data of Daqing SW area. The experiment show prospect of the potential applications.

用小孔径波动方程三前深度偏移完成大面积数据的成像,不仅总的计算量较大,而且成像畸变较严重,为了进行大孔径波动方程叠前深度偏移,必须将实际的小孔径资料合成大孔径资料,并解决大孔径资料的成像方法.AMO等合成孔径方法,数据合成方式简单,但成像方法是近似的且较复杂.面炮方法从理论上讲数据合成方式较简单,成像方法是精确的且较简单,但其应用适用于远道振幅比近道弱很多的情况.在窄线三维地震资料情况,其联络测线方向不易满足面炮应用条件.针对这种情况,本文将最小二乘原理应用于波场成像,提出适用窄线三维地震资料的面炮方法.为了解三维波动方程叠前深度偏移的面炮方法解决复杂油气藏的可行性、所需计算资源和成像效果,我们利用大庆SW地区三维地震资料进行了实验研究.通过研究,我们获得了面炮方法的实际效果,获得了所需计算资源的测试数据.对实际效果的分析对比表明,面炮方法是一种三维波动方程叠前深度偏移的快速方法,有较好应用前景.

The computation of seismic wave equation pre-stack depth migration costs much time and needs many equipments. The huge parallel computer was greatly welcomed to industry because of its high computational ability. But it is too expensive to expand its customer. The latest massively parallel computer established by Linux on PC cluster, named Beowulf cluster, is a very economical alternative. In this paper, we discussed the implementation of PC cluster for pre-stack depth migration on Mar- mousi model. To be compared,...

The computation of seismic wave equation pre-stack depth migration costs much time and needs many equipments. The huge parallel computer was greatly welcomed to industry because of its high computational ability. But it is too expensive to expand its customer. The latest massively parallel computer established by Linux on PC cluster, named Beowulf cluster, is a very economical alternative. In this paper, we discussed the implementation of PC cluster for pre-stack depth migration on Mar- mousi model. To be compared, we choose the famous IBM-SF2 as reference to demonstrate the perfor- mance of PC cluster.

波动方程叠前深度偏移等地震资料处理需要相当大规模的计算资源条件.巨型并行机因其计算能力强而备受工业界的青睐,但其价格的昂贵也限制了使用范围.近年来国际上出现的微机群是一种大规模并行计算的廉价实现方案,本文即是讨论利用微机群来实现Marmousi模型叠前深度偏移所涉及的数值实现.为比较起见,我们选择国际上大规模分布式并行计算机代表-IBMSP-2以进行计算性能的比较.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关波动方程叠前深度偏移的内容
在知识搜索中查有关波动方程叠前深度偏移的内容
在数字搜索中查有关波动方程叠前深度偏移的内容
在概念知识元中查有关波动方程叠前深度偏移的内容
在学术趋势中查有关波动方程叠前深度偏移的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社