This paper has made some searching in Complex structure fine pre-stack processing and pre-stack migration imaging, and has achieved some results.

本文就这两个问题，在复杂构造叠前精细处理、复杂构造叠前偏移成像等方面开展了一些探索，取得了一定的效果。

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With the requirment of precise seismic interpretation and thoroughgoing exploration, the conventional post-stack migration reveals its limitations.

随着勘探和开发对地震资料处理成果的要求越来越高，常规叠后时间偏移处理技术的缺陷日益显现出来。

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At the same time, the complex characteristics of underground structure make conventional stack and post-stack migration methods can not accurately imaging.

同时，由于地下复杂构造特征使得常规叠加和叠后偏移方法不能准确的成像。

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