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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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