能量一致性对叠前时间偏移成像影响分析

The analysis of energy consistency for pre-stack time migration imaging

本文简单介绍了克希霍夫积分法的基本原理,通过模型数据正演研究,深入剖析了能量一致性对偏移成像的影响,发现能量差异不仅会造成剖面画弧,还会使剖面的分辨率发生横向变化.文中对提高能量一致性的处理手段和监控方法进行了详细的说明,并通过具体实例,印证了提高叠前数据能量一致性,对改善偏移成像效果,提高资料整体品质的作用.

This paper briefly describes the basic principles of Kirchhoff integral method, and through forward research of the model data, in-depth analysis the affect of the energy consistency for migration imaging. It is found that the energy differences not only result in profile drawing arcs, but also occurrence of lateral variation of profile resolution rate. The processing tools and monitoring methods to improve the energy consistency are described in detail, and through concrete examples, it is confirmed that the increased energy consistency of prestack data, to improve the effect of migration imaging and the overall quality of data, play an important role.