川东地区高陡构造地震采集方法探讨
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摘要
川东地区的高陡构造条带复杂,地震资料信噪比低。通过高陡构造地表、表层及地下地震地质条件的分析,在激发点位选择上,提出了基于有效照明和有利激发岩性的选点原则,认为应药量的选择应以信噪比为选择原则,采取有效的激发接收方法。在观测方式上,对二维、三维主要观测参数进行了分析,最终取得了较好的接收效果。
The steep structures of Eastern Sichuan are complex,and signal-to-noise ratio of seismic data is low.By the analysis on geological conditions of steep structures surface,surface layer and underground,on the choice of the excitation point,this paper proposes the principles based on effective lighting and conducive to the stimulation lithology,thinks the choice of dosage should take signal-to-noise ratio as principle of selection,take effective excitation and receiving method.In observation mode,two-dimensional,three-dimensional observation parameters were analyzed,and ultimately obtain a better reception.
The steep structures of Eastern Sichuan are complex,and signal-to-noise ratio of seismic data is low.By the analysis on geological conditions of steep structures surface,surface layer and underground,on the choice of the excitation point,this paper proposes the principles based on effective lighting and conducive to the stimulation lithology,thinks the choice of dosage should take signal-to-noise ratio as principle of selection,take effective excitation and receiving method.In observation mode,two-dimensional,three-dimensional observation parameters were analyzed,and ultimately obtain a better reception.
引文
[1]刘丽华,范明祥,徐强.川东高陡构造带构造模式分类[J].天然气工业,1999(05).
[2]李忠权等.川东高陡构造成因地质模式与含气性分析[J].成都理工学院学报,2002(06).
[3]汪晴川等.川东高陡地区地震采集方法探讨[J].物探化探计算技术,2010(01).
[2]李忠权等.川东高陡构造成因地质模式与含气性分析[J].成都理工学院学报,2002(06).
[3]汪晴川等.川东高陡地区地震采集方法探讨[J].物探化探计算技术,2010(01).
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