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在地震勘探过程中 ,随机噪音是影响地震资料信噪比的主要因素之一 ,尤其是对能量弱、频率低的深层地震信号。与有规律的线性干扰相比 ,随机噪音没有固定的视频率和视速度 ,但在一定的区域范围内 ,这类干扰又是遵循统计规律的。因此 ,深入地调查和分析工区内随机噪音的特征及其与施工因素的关系 ,对于更好地指导野外数据采集具有实际意义。本文结合胜利探区深层试验资料 ,主要对随机噪音中的环境噪音和次生噪音的特征及其与施工因素的关系进行了定量分析和统计 ,获得了一点认识 ,并提出了一些行之有效的压制方法 ,在实际生产中收到了一定的效果。
In the process of seismic exploration, random noise is one of the main factors affecting the signal-to-noise ratio of seismic data, especially for deep seismic signals with weak energy and low frequency. Compared with regular linear interference, random noise has no fixed video frequency and apparent velocity, but in a certain area, such interference follows the law of statistics. Therefore, in-depth investigation and analysis of the characteristics of random noise in the work area and its relationship with construction factors have practical significance for better guidance of field data collection. Based on the deep test data of Shengli Exploration Area, this paper mainly analyzes the characteristics of environmental noises and secondary noises in random noise and their relationship with construction factors, obtains a little understanding and puts forward some effective Suppression method, in the actual production received a certain effect.