Migration velocity is the key factor which influences the migration result.
偏移速度是影响偏移效果的关键因素。
As to migration velocity analysis, it is suggested to start with a little higher initial velocity.
在偏移速度分析中，从稍大的速度开始分析会对速度分析更加有利。
Besides, the effect of migration velocity on imagery depth and preprocess of real data are discussed.
文中还就偏移速度对成像结果的影响和实际资料的预处理问题进行了讨论。
Because of the ambiguity of seismic migration velocity, the quality of seismic migration imaging always bores people.
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。
We analyze theoretically the existence of precursor anomaly migration and the nonlinear variation of migration velocity.
从理论上对前兆异常迁移性的存在与迁移速率的非线性变化进行了分析。
Applying this approach to real data shows that the estimated migration velocity reliably converges to the correct velocity.
此方法用于实际数据，结果证明该方法提取的偏移速度模型非常接近真实的速度。
The paper presents the methods and steps of building 3-D migration velocity field with "Slice Method"on INTERBASE system of CGG.
本文介绍了在CGG的INTERBASE系统上用“切片法”建立三维偏移速度场的方法和步骤。
Using special common offset gather for crosshole seismic, a migration velocity analysis method is developed for crosshole seismic.
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。
For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used.
采用DMO、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。
The correct migration velocity can be estimated by integrating the right percentage of the velocity model, which produces the greatest improvement.
准确的偏移速度可以通过选用正确的速度模型百分比估算出来，可使成像效果得到最显著的提高。
We proposed residual migration velocity analysis by synthetic source records based on residual migration velocity analysis in the plane wave domain.
本文在平面波剩余速度分析方法的基础上提出了基于波动理论的合成震源记录剩余偏移速度分析方法。
Migration velocity analysis is one of the key steps in pre stack depth migration whose accuracy directly affects the quality of pre stack depth migration.
偏移速度分析是叠前深度偏移的关键步骤之一，它的准确与否直接影响叠前深度偏移的质量。
The surface concentration of the adsorbed surfactants, the surface velocity and the migration velocity of the bubble are obtained by a boundary collocation technique.
采用边界配置点法数值求解了气泡表面吸附的活性剂浓度、气泡表面流体速度以及气泡在溶液中的运动速度。
As with most other migration methods, the success of TpDM depends on the correct migration velocity function used. We have discussed this effect of the migration velocity in this paper.
为了论证本方法的效果，本文给出了不同的正演理论模型和偏移结果的例子。
Taking aim at solving the important velocity model problem in wave equation pre-stack depth migration, This paper studies the method and software of building 3d migration velocity model.
针对波动方程叠前深度偏移中重要的速度模型问题，研究了一套三维速度建模方法和软件。
Semblance spectrum is the important tool to judge whether the migration velocity is correct or not and obtain the velocity update amount in residual curvature migration velocity analysis.
相干谱在剩余曲率偏移速度分析中，是判别速度是否正确以及求取速度更新量的重要工具。
The physical simulation results show that the fault below salt directly connected by hydrocarbon resource rocks and traps is the packing fault, in which gas migration velocity can get the top.
物理模拟结果表明：直接连接烃源岩和圈闭的盐下断裂是天然气运移效率相对较高的充注断裂，天然气在圈闭中聚集成藏取决于断裂组合输导模式。
According to the analysis of the influence of heavy phase separation and light phase separation on the migration velocity, the track of the migration of the dispersed fluid drops is worked out.
根据重相分离和轻相分离对迁移速度影响的分析，得出分散相液滴迁移运动轨迹。
It can act as an interim key step of imaging complex structure, which plays an important role for ensuring quality of velocity analysis and depth migration.
它可以作为复杂构造成像的一个关键的中间环节，对于提高最终的速度分析质量和深度偏移成像效果是至关重要的。
The purpose of migration is to inversely solve for the singularity (interrupted surface of interval velocity) of wave equation coefficient.
偏移的目的是要反演波动方程系数的奇性(层速度的间断面)。
Wave equation time migration fails to image subsurface geological structure correctly in the case of obvious lateral seismic velocity variation.
当介质的速度在横向上存在较大的变化时，波动方程时间偏移不能使地下的构造正确成像。
A method for deriving the smoothed ground surface from CMP datum of static correction is given to form a common datum for velocity spectrum, time-depth conversion and depth migration in depth domain.
本文还给出了根据（静校正的）CMP基准面计算地表圆滑面的方法，统一了深度域中速度谱、时深转换和深度偏移的基准面。
The paper introduces a prestack depth migration by nonstationary phase shift method suitable for laterally variable velocity.
介绍一种能够适应介质速度横向变化的非稳态相移算子及其叠前深度偏移方法。
In stepped frequency radar, the velocity of targets must be estimated and compensated to eliminate the range migration and distortion due to target moving.
步进频率雷达中，目标的径向运动将导致合成的目标径向一维距离像产生距离徙动和波形失真，需要对目标速度进行估计以补偿其影响。
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。
Ordinary DMO processing methods neglect the influence of velocity because some people think that DMO processing is less sensitive to velocity than full migration processing.
目前使用的常规dMO数据处理方法忽略了速度的影响，认为D MO处理对速度不像全偏移那样敏感。
Ordinary DMO processing methods neglect the influence of velocity because some people think that DMO processing is less sensitive to velocity than full migration processing.
目前使用的常规dMO数据处理方法忽略了速度的影响，认为D MO处理对速度不像全偏移那样敏感。
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