The conventional velocity analysis does not consider the influence of the NMO velocity varying with offset, making the results not ideal, leading to a poor stacking and migration imaging.

• 由于动校正速度是随偏移距变化而变化的,而常规速度分析并没有考虑这一因素,动校正效果往往不是很理想,从而影响资料的叠加和成像效果。