综合静校正方法在复杂山地地震资料处理中的应用APPLICATION OF THE STATIC CORRECTING METHOD IN THE RPOCESSING OF THE COMPLEX MOUNTAINOUS SEISMIC DATA
高赞,欧阳永林,曾庆才,包世海
GAO Zan,OUYANG Yonglin,ZENG Qingcai,BAO Shihai
摘要(Abstract)：
复杂山地地区表层结构模型复杂,静校正问题突出,导致地震处理成像质量差,地下构造形态难以准确落实。针对复杂山地的静校正问题,采取综合静校正的处理思路,首先应用多种近地表建模方法对低降速带结构模型进行研究试验,结合实际地表地质资料对模型的精度进行分析,并分别计算静校正量,然后从单炮、叠加剖面的应用效果上进行质量控制和方法优选,达到基本消除低频静校正量保证真实构造形态的目的,再进一步综合应用多种剩余静校正技术解决剩余的中高频静校正量问题,最终得到了较好的成像效果。
In complex mountainous areas,the surface structural model is rather complex,the problem of the static correction is rather obvious,these conditions result in the poor quality of the seismic processing,and moreover the underground structural feature is difficult to implement.In the light of the static correction problem in the complicated mountainous area,the countermeasure thought of the comprehensive static correction is adopted:firstly,by using a variety of near surface modeling methods,the reduce the study and test on the structural model are carried out for the low-speed belts,and moreover combined with the actual surface geological data,the model precision is analyzed,and furthermore the static correction value is calculated individually;and then from the viewpoints of the applied effects of the single shots and stacked sections,the qualities are controlled and the methods are optimized so as to achieve the purposes of basically eliminating the low-frequency static correction and ensuring the real structural attitudes;and furthermore by means of the comprehensive application of a variety of residual static correcting techniques,the remained problems of the static correction values for the medium and high frequencies are solved,finally the much better imaging effects are achieved.
关键词(KeyWords)：
复杂山地;静校正;表层模型;剩余静校正
complex mountainous region;static correction;surface model;residual static correction
基金项目(Foundation):
作者(Author):
高赞,欧阳永林,曾庆才,包世海
GAO Zan,OUYANG Yonglin,ZENG Qingcai,BAO Shihai
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