叠前深度偏移是转换波最佳成像方法。
Prestack depth migration is an optimal imaging method for PSV wave.
叠前深度偏移是人们解决复杂条件下勘探的重要方法。
Pre-stack depth migration is an important method used to explore complex area.
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.
为此，探讨了直接从起伏地表开始的波动方程叠前深度偏移方法。
Therefore, the wave equation pre-stack depth migration, a method starting directly from the rolling surface, is discussed.
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。
For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used.
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。
The paper introduces a prestack depth migration by nonstationary phase shift method suitable for laterally variable velocity.
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.
叠前深度偏移技术既可在炮点—接收点域实现，也可在共中心点—炮检距域实现。
Pre-stack depth migration technique can be realized either in shotpoint receiver domain or in CMP offs et domain.
利用单程波动方程炮道集叠前深度偏移方法，建立了相关叠前深度偏移处理流程；
The One-Way Wave Equation Prestack Depth Imagimg operators in the hybrid domain are developed into the software and the processing sequence is built.
三维波动方程叠前深度偏移是复杂介质中进行构造成像、弹性参数反演的重要环节。
The 3-D wave equation prestack depth migration is one of the most important techniques in the structure imaging and the inversion of elastic parameters of complex media.
直接从起伏地表开始的叠前深度偏移方法是对付复杂地表和复杂地质构造成像的有效手段。
Pre stack depth migration which starts directly from undulating earth surface turns out to be a valid way to deal with irregular topography and complex geologic structures.
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。
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.
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.
叠前深度偏移技术是解决复杂构造和速度横向变化剧烈地区的地震资料成像问题的理想技术。
Prestack depth migration is an ideal technique for seismic data imaging in the regions with complex structural conditions and severely changeable lateral velocities.
结果表明：起伏地表波动方程叠前深度偏移照明加权成像结果与理论模型构造形态非常吻合。
The result showed that the illuminated weighting imaging results by wave equation prestack depth migration from relief surface very coincide with the structural configuration of model.
具有独特的速度建模、叠前深度偏移成像、高效并行计算、三维可视化和性能优化等特色技术。
Accurate velocity model building, advanced PSDM, high efficient parallel computing, 3-d visualization and performance optimization are characteristic techniques.
叠前深度偏移是复杂地质体成像的有力工具，其成像的质量主要取决于所用速度-深度模型的精度。
Prestack depth migration is an effective tool for complex geologic body imaging. The quality of its image depends mainly on the accuracy of velocity-depth model.
然后介绍了胜利油田典型模型的正演模拟及其数据体在研究叠前深度偏移方法和观测系统设计方面的应用。
The paper also introduced the forward simulation of Shenli Oilfield typical model and application of their data volume to study prestack depth migration and design of geometry.
波动方程偏移保持了波场动力学特征，依此本文应用共方位角叠前深度偏移技术来实现二维资料三维化处理。
Wave equation migration can preserve the kinetic characteristics of wave field, so this paper applies common-azimuth prestack depth migration technology to realize 3D process for 2D seismic data.
作为最具物理性的共炮点道集的波动方程叠前深度偏移，涉及庞大的波场外推计算量，计算极其耗时，效率较低。
As the most physical of the shot-profile wave equation pre-stack depth migration involving huge extrapolation calculation, the calculation is extremely time-consuming and less efficient.
共聚焦点(CFP)偏移是基于等时原理，通过激发聚焦和检波聚焦的双聚焦实现叠前深度偏移的地震成像方法。
Common focus point (CFP) migration based on the equal travel-time principle is a kind of pre-stack depth migration method through focusing in both emission and detection.
面炮组合和控制照明结合的叠前深度偏移通过对震源波场的控制以及高效的面炮偏移能够得到高质量的成像结果。
Prestack depth migration of areal shot records and controlled illumination can get high-quality images by source wavefield controlling and highly efficient areal shot records migration.
基于波场延拓的叠前深度偏移是实现复杂构造地质体成像的可靠方法，但存在着计算量大、对观测系统适应性差等缺点。
Although the wave field based pre-stack depth migration is the most reliable method for complex structure imaging, it has a high computation cost and a poor adaptation to geometry.
本文介绍了基于广角隐式有限差分单程波传播算子的起伏地表叠前深度偏移方法，并对SEG山前带推覆构造模型进行了检验。
The paper introduced the prestack depth migration from relief surface based on implicit wide-angle finite-difference one-way propagation operator and used SEG piedmont nappe structure model for test.
对比分析了叠前深度偏移、叠后时间偏移和叠前时间偏移结果，分析表明，叠前深度偏移技术能较好地改善该区复杂构造的成像质量，提高资料的信噪比和分辨率。
Analysis of the results suggest that poststack depth migration has more advantages in improving S/N ratio, resolution and image effect than poststack time migration and prestack time migration.
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.
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.
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