互均衡处理技术的分析与应用

 互均衡处理技术作为提高时移地震资料一致性的最有效的处理技术在时移地震资料处理中被广泛地应用，并取得了明显的效果。本文通过模型分析和对实际地震资料的应用表明：互均衡处理技术应用效果的优劣不仅取决于野外采集资料本身的一致性水平，而且与互均衡滤波器设计的时窗位置、大小、滤波器长度等有关；正确选择互均衡处理流程可以有效消除或克服野外采集所造成的不可重复性噪声，控制和减小处理方法本身对有效时移地震异常的畸变；认真分析经互均衡处理后的地震差值剖面中剩余能量的真实性和可靠性，对于弱异常时移地震监测非常重要。

Analysis and application of cross-equalization processing technique

As the most effective processing technique in improving consistence of time-lapse seismic data, the cross-equalization processing technique has been broadly applied in time-lapse seismic data processing and achieved distinctive effects. The paper showed by model analysis and application to real seismic data that the good or bad application effects of cross-equalization processing technique depend on not only the consistent level of data acquired in the field, but also the position and size of time windows the cross-equalization filter designed as well as the length of filter; correctly selecting the cross-equalization processing flow can effectively eliminate or overcome the non-repeatable noises from field acquisition, control and reduce the distortion of interesting time-lapse seismic anomaly to the method itself. It is important for time-lapse seismic monitoring with weak anomaly to carefully analyse the trusty and reliability of residual energy in cross-equalization-processed seismic difference profile.