非地表一致性静校正技术研究

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英文篇名：Technology Study of Non-Surface Consistent Static Correction 中文刊名：中国石油勘探 英文刊名：China Petroleum Exploration 作者：吴文熙 ; 梁春燕 ; 杨文斌 ; 李全胜 ; 文一华 ; 朱美勤 ; 苟第章 英文作者：Wu Wenxi ; Liang Chunyan ; Yang Wenbin ; Li Quansheng ; Wen Yihua ; Zhu Meiqin ; Gou Dizhang//PetroChina Tuha Oilfield Company ; Hami City ; Xinjiang Uygur Autonomous Region 839009 中文关键词：非地表一致性 ; 浮动基准面 ; 静校正 英文关键词：non-surface consistency ; floating datum ; static correction 出版日期：2009-02-15 机构：中国石油吐哈油田分公司; 年：2009 期：01 出版单位：中国石油勘探

摘要

静校正始终是陆上地震勘探中的一个重要问题,静校正的准确与否将直接影响地震资料处理的质量。在我国西部山区地形起伏较大,地震勘探中的静校正问题尤其突出,地表一致性假设和地震勘探的水平层状模型假设都与实际地质情况不符,在这种情况下再按照地表一致性校正,就会产生很大的误差。提出采用浮动基准面静校正、波场延拓表层模型静校正、平滑静校正等几种非地表一致性静校正方法,提高了地震资料的信噪比,取得了较好的效果。
Static correction is always a key issue for land seismic exploration, so whether the static correction is right or wrong can exert direct effect on the quality of seismic data processing. The problem of static correction gets especially prominent in the seismic exploration of the rough mountainous region in western China. So the surface consistency hypothesis and the horizontal layered model hypothesis are not correspondent with actual geological conditions. There will exist a major error by using the method of surface consistent static correction. In this paper, several non-surface consistent static correction methods are proposed, including the static correction method by using floating datum, the method of surface model static correction by wave- field continuation, the method of smooth static correction. As a result, the signal to noise ratio is increased and better results are obtained.

引文

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