PROMAX处理系统中τ-p模块研究与应用
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摘要
在地震资料处理中,提高地震勘探资料的信噪比,突出有效信号,压制多种干扰波是一个重要环节。在压制无规则干扰方面,近几年发展起来不少新的方法(例如:f-x 域预测技术,矢量分解压噪等)。但在压制多次波干扰和面波干扰方面,目前有效的方法并不多。通过对 ProMax 地震资料处理系统的τ-p 正反变换模块方法原理的研究,在理论和实践上对多次波和面波进行分离,以期消除多次波干扰和面波干扰,提高地震资料的信噪比。
During seismic process,a key step is to improve sigual-to-noise ratio,highlight effective signals and de- press various disturbing waves.In recent years,many new methods have been developed to depress irregular inter- ference.In contrast,methods used to depress regular interference,especially multiple reflection and surface wave are few.In this paper,after studying the principle of the τ-p transform and inverse transform module,many at- tempts have been made to separate multiple reflection and surface wave theoretically and practically,in order to re- move the interference caused by them,and improve the signal-to-noise ratio.
During seismic process,a key step is to improve sigual-to-noise ratio,highlight effective signals and de- press various disturbing waves.In recent years,many new methods have been developed to depress irregular inter- ference.In contrast,methods used to depress regular interference,especially multiple reflection and surface wave are few.In this paper,after studying the principle of the τ-p transform and inverse transform module,many at- tempts have been made to separate multiple reflection and surface wave theoretically and practically,in order to re- move the interference caused by them,and improve the signal-to-noise ratio.
引文
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