深部煤层地震资料处理方法
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摘要
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 S/N 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.
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 S/N 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.
引文
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[6]徐基祥,崔化娟.中国东部深层地震资料处理新技术研究[J].地球学报,2003,24(增刊):283-288
[2]程爱国.我国煤炭地质勘查标准化体系建设及展望[J].中国煤田地质,2006,18(2):1-4.
[3]吴钦宝,陈同俊,陈凤云.中国东部煤矿深部开采中的地质勘探技术[J].地球物理学进展,2005,20(2):370-373.
[4]赵文津.中国区域地质调查现代化与加强深部调查[J].中国工程科学,2003,5(6):25-32.
[5]何满潮.深部开采工程岩石力学现状与展望[C]//第八次全国岩石力学与工程学术大会论文集.北京:科学出版社,2004.
[6]徐基祥,崔化娟.中国东部深层地震资料处理新技术研究[J].地球学报,2003,24(增刊):283-288
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