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地震反射走时拾取是反射走时层析成像的首要环节。本文提出一种基于共炮点域、共检波点域、共中心点域、共偏移距域的多域人机交互反射波走时拾取方法。通过分析地震记录在不同域的特征,选择最佳的域进行反射波同相轴的拾取,在人机交互的环境下采用人工和计算机相结合,提高拾取的准确度和效率。利用Qt语言编程实现了地震资料的多域显示及反射波走时多域人机交互拾取软件。合成地震记录和实际地震资料的走时拾取结果表明,该软件操作灵活方便,对复杂地震资料的反射波走时拾取取得良好效果。
Seismic reflection pick-and-go is the first step of reflection time-lapse tomography. In this paper, a multi-domain human-computer interaction reflected travel time-based pick-up method based on common gun point domain, common detection point domain, common center point domain and common offset domain is proposed in this paper. By analyzing the characteristics of seismic records in different domains, the best domain is selected for the pickup of reflected waves, and the combination of human and computer is used to improve the accuracy and efficiency of picking up in the environment of human-computer interaction. Using Qt language programming to achieve multi-domain seismic data display and reflected wave travel time domain multi-domain human-computer interaction software. The results of walk-time pick-up of synthetic seismograms and actual seismic data show that the software is flexible and convenient to operate, and good results are obtained for the pick-up of reflected waves from complex seismic data.