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利用虚速度剖面进行砂体的追踪和描述，比水平叠加偏移剖面准确合理。虚速度剖面制作质量的好坏主要取决于提取子波时测井约束的效果、水平叠加偏移剖面的质量、叠加速度的选取和平滑作用以及各处理参数的选择。通过研究预测出良好的含油区块。
Using the velocity profile to track and describe the sandbody, it is accurate and reasonable to overlay the offset profile. The quality of the imaginary velocity profiling depends mainly on the logging constraints when extracting the wavelet, the quality of the horizontal superimposed offset profile, the selection and smoothing of superposition velocity, and the selection of each processing parameter. Good oil blocks are predicted through research.