地震偏移则利用绕射能量使反射归位。
Proper migration of seismic data makes use of diffracted energy to properly position reflections.
地震偏移成像是地震资料处理的重要组成部分。
Seismic migration imaging is an important component to seismic data processing.
地震偏移是提高深部地震资料横向分辨率的主要手段。
Seismic migration is a main tool to improve horizontal resolution of the deep seismic reflection data.
地震偏移技术已经成为研究一切复杂地下介质结构的主要手段。
Seismic migration technique has become an important means for analysing all complicated subsurface geological structures.
由于地震偏移速度的不确定性，偏移成像的质量很难得到保证。
Because of the ambiguity of seismic migration velocity, the quality of seismic migration imaging always bores people.
为此，以全三维地震偏移资料为基础的岩性圈闭研究得以开展。
For this reason, the lithological trap investigation has been carried out on the basis of full 3-d seismic migration data.
提出一种全新的地震偏移处理方法—共聚焦点(CFP)成像技术。
A brand new kind of approach is presented for seismic migration processing-Common Focus Point (CFP) imaging techniques in this paper.
利用井间地震特有的共偏移距道集，找出了适宜于分析井间地震偏移速度的方法。
Using special common offset gather for crosshole seismic, a migration velocity analysis method is developed for crosshole seismic.
在理论分析的基础上，对地震偏移成像分辨率的定量分析过程进行了数值模拟实验。
According to theoretical analysis, a large number of numerical simulation experiments were conducted to quantitative analysis of resolution of seismic migration imaging.
拉冬变换在地震勘探领域有广泛的应用，如压制多次波、纵横波分离、地震偏移及反演等。
Random transform has been widely used in seismic exploration, for example, suppression of multiple, separation of P- and S-waves, seismic migration and inversion etc.
那场9.1级的地震使地球自转轴心线发生2.3毫弧度的偏移，并将一天的时间缩短6.8毫秒。
That 9.1 magnitude quake shifted the Earth's axis by 2.3 milliarcseconds and shortened a day by 6.8 microseconds.
此前，格罗斯运用技术手段对2004年印度洋海啸造成的苏门答腊大地震进行类似的轴心线偏移测评。
Gross previously used the technique to estimate the shift caused by the 2004 Sumatran quake that caused the Indian Ocean tsunami.
是利用振幅随偏移距变化特征分析和识别岩性和油气藏的地震勘探技术。
AVO is a seismic exploration technology using the characteristics of amplitude variation versus offset to recognize the rock types and oil-gas reservoir.
提出了一套基于平面波分解的波动方程叠前地震数据深度偏移方法。
Based on plane wave decomposition, We propose a wave-equation depth migration method for pre-stack seismic data.
波动方程叠前深度偏移技术是复杂地表地震资料成像的有效方法。
Wave equation prestack depth migration technique is an effective method of seismic data imaginating in complicated surfaces.
本文方法可用于横向各向同性介质的深度偏移及地震层析成像的深入研究。
The extended ray tracing method can be applied to further researches on depth migration and seismic tomography for TI media.
在有限元计算模型处理时，对由不同厚度钢板焊接而成的罐壁进行了板壳元的厚度偏移处理，并详细讨论了地震载荷的计算和影响。
Secondly, an FEA model is built, in which the plate offset effect is considered for the tank walls of variable thickness, and the effect of the seismic load is analyzed.
三维地震及其叠前深度偏移技术及软件系统的研究、开发和应用取得显著成效。
Remarkable achievements were obtained in the research, development and application of three dimensional seismic exploration and its depth migration before stack technique as well as software system.
为了提高垂直地震剖面(VSP)成像质量，首次将高斯束偏移方法应用于VSP观测系统。
In order to improve the quality of vertical seismic profile (VSP) imaging, the Gaussian-beam migration (GBM) was applied to VSP for the first time.
采用地震造前深度偏移技术，使复杂构造正确成像。
The technique of seismic pre-stack depth migration is used to correctly implement the complex structural imaging.
结果表明：叠前时间偏移技术能够有效地提高构造复杂地区煤层的成像效果，提高煤田地震资料的信噪比和分辨率。
The results demonstrated that this technology can improve imaging of coal seams in structure complicated areas and coalfield seismic data signal-to-noise performance and resolution effectively.
在地震数据处理中，恢复缺失的近偏移距道数据是一项非常重要的工作。
Restoration of near-offset missing datum is an interesting and important problem in seismic data processing.
这对各向异性介质中的弹性参数反演、偏移成像和地震资料的精确解释等都有重要意义。
It has an important meaning for elastic parameters inversion in anisotropic media, migrated imaging and precise interpretation of seismic data.
结合共偏移距道集地震方法可以给出异常体埋深信息。
Combined with common offset gather method, the depths of abnormality were obtained.
低频的地震道和长偏移距道都是切除的目标。
Low-frequency traces and long-offset traces are typical targets for muting.
射线追踪的速度和精度直接影响地震资料的静校正和偏移成像的质量。
The speed and precision of ray tracing affect the quality of statics and migration for seismic data.
地震剖面上一个向上凹的、半圆形的同相轴，看上去象是微笑的样子，这是由于对含噪音数据或质量差的数据进行偏移引起的。
A concave-upward, semicircular event in seismic data that has the appearance of a smile and can be caused by poor data migration or migration of noise.
结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
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