深部煤层地震资料处理方法

The seismic data processing method of deep coal-bed

深部煤层地震勘探技术面临信噪比低、分辨率低、地下成像困难等诸多难点。在分析深部地震资料特点和处理难点的基础上,对如何从深部地震资料中压制多次波、提高信噪比,提出了利用"减去法"压制多次波和采用"扩大面元叠加"提高信噪比的处理思路,在实际资料处理中获得了显著的地质效果。

With the shortage of energy supply, it is becoming a common need to develop the deep mineral resource all over the world. There is much problem to overcome for deep coal resource＇s seismic exploration, such as low S/N ratio, low resolution, difficulty in imaging, etc. The characters of seismic exploration for deep coal resource and the difficulties for processing are analyzed in this paper and the methods to suppress the multiple wave and to improve the S/N ratio is put forward. The results show that souston module is good at the suppression of multiple waves and bin-enlargement processing has obvious effect at the promotion of SIN for deep coal seismic prospecting Based on the processing of actual seismic data, it is proved correct and effective for the use of this method.