复杂黄土塬煤矿地震资料处理关键技术

Key technologies of seismic data processing in complex loess plateau area

为解决典型复杂黄土塬地貌特征地表沟谷纵横、高程变化剧烈、出露地表岩性复杂带来的原始资料干扰类型多、静校正的突出问题,以崔木矿区为研究对象展开工作,由于采用常规方法处理的叠加剖面不能完全满足地质解释的需求,因此开展了针对性的处理方法研究。如采用多种去噪方法联合进行去噪处理,在微测井控制下采用多种方法联合解决长短波长静校正问题等。所获时间的信噪比、分辨率得到了大幅度提高,其成果不仅可以满足构造解释的需要,同时也为岩性解释提供可靠的基础资料。

Because of the complex loess plateau’s vertical and horizontal valleys,large elevation changes and complex surface lithology,there are many interference factors and difficult static correction in seismic exploration raw data processing.Taking Cuimu mining area as the research object,because the conventional treatment method cannot meet the needs of geological interpretation,it is necessary to carry out targeted treatment method research.By using a variety of denoising methods to deal with the noise,and using a variety of methods to solve the static correction of long and short wavelength under the control of micro-logging,the signal-to-noise ratio and resolution ratio of the time obtained have been greatly improved.The research results can not only meet the needs of structural interpretation,but also provide reliable basic data for lithologic interpretation.