有关野外静校正的几个问题

随着山地石油勘探事业的发展,静校正在地震资料处理过程中的重要性得到了充分体现,它是陆上数据处理中最重要的一步,能够改善后续各处理步骤的质量,并对成像剖面的完整性、质量和分辨率有重要的影响。静校正误差不仅影响到地震资料的分辨率,而且还会给解释人员带来很多困扰(比如假构造等)。但有关静校正的一些概念似乎还不是很清晰,例如野外静校正,国内外众多的学者对其概念各有见解,很难统一。本文介绍了野外静校正过程中所涉及的一些基本概念,在参照各方观点的基础上,通过对比分析认为诸如基准面静校正之类的说法委实不妥,容易混淆,建议统一使用野外静校正这个说法。

Discussion on field static correction

With the development of petroleum exploration in the mountainous area,the importance of static correction applied to the seismic processing is fully embodied.It is the most important step in land data processing,which can improve the quality of every subsequent processing steps as well as influence section's image integrity,quality and resolution ratio.Static correction error will not only influence the resolution ratio of seismic data but also bring many puzzles for interpreters(for instance the pseudo structure).But some concepts on static correction seem to be not clear.Scholars from home and abroad have their own views about it.In this paper,it is considered that some of the definitions about static correction such as datum static correction are unsuitable and suggested the term of field static correction should be used instead.