地震层析技术在地下煤炭表征中的应用
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摘要
煤炭作为支撑国民经济的重要能源资源,准确地描述煤层特征对于估算煤炭储量具有重要的意义.在地震勘探中,地震波包含了地下煤层的重要信息,应用地震层析技术,将地震数据体通过菲涅耳带插值宽谱层析反演技术进行处理,可实现对煤层表征.实际应用结果表明,该技术对于描述煤层位置以及火成岩侵入体位置非常有效,能够更容易地识别出煤层特征.
In recent years,coal has becomed important energy resources to support national economy.Therefore,how to describe the characterization of coal seam accurately is also important in estimating the the remaining reserve in subsurface.Seismic wave is an very important parameter to characterize reservoir's properties of coal bed methane as well as quality of coal.In this paper,we show methodology to image the subsurface velocity using seismic tomography.Data are processed by Fresenl interpolated wavepath(FIW) wide-band inversion tomography.It is very useful for characterizing the coal's seam as well as to detect the position of intrusion body.
In recent years,coal has becomed important energy resources to support national economy.Therefore,how to describe the characterization of coal seam accurately is also important in estimating the the remaining reserve in subsurface.Seismic wave is an very important parameter to characterize reservoir's properties of coal bed methane as well as quality of coal.In this paper,we show methodology to image the subsurface velocity using seismic tomography.Data are processed by Fresenl interpolated wavepath(FIW) wide-band inversion tomography.It is very useful for characterizing the coal's seam as well as to detect the position of intrusion body.
引文
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[4]NURHANDOKO B E,MATSUOKA T,ASHIDA Y.Fresnel Zone Wavepath Tomography[J].Geophysical Exploration,2000,53:208-219.
[5]胡运兵,吴燕清.薄层状介质中反射地震超前探测的特性分析[J].河南理工大学学报:自然科学版,2006,25(6):469-473.
[6]冯义德.地震资料二次处理解释及其应用[J].河南理工大学学报:自然科学版,2009,28(6):727-730.
[7]CERVENY V,SOARES J E.Fresnel Volume Ray Tracing[J].Geophysics,1992,57:902-915.
[8]WU R,TOKSOZ M N.Diffraction tomography and multisource holography applied to seismic imaging[J].Geophysics,1988,52:11-25.
[9]VASCO D W,PETERSON JR J E,MAJER E L.Beyond ray tomography:wavepaths and Fresnel volumes[J].Geo-physics,1995,60:1790-1804.
[2]张岭,刘劲松.从AGU2004秋季年会看地震层析成像的进展[J].地球物理学进展,2005,20(3):600-610.
[3]NURHANDOKO B E.Imaging Subsurface Fractureand Void using Wide-band Inversion of Fresnel Interpolated Wave-path Seismic Tomography[C]//Proc of Asian Physics Symposium,[S.l.],2005:121-125.
[4]NURHANDOKO B E,MATSUOKA T,ASHIDA Y.Fresnel Zone Wavepath Tomography[J].Geophysical Exploration,2000,53:208-219.
[5]胡运兵,吴燕清.薄层状介质中反射地震超前探测的特性分析[J].河南理工大学学报:自然科学版,2006,25(6):469-473.
[6]冯义德.地震资料二次处理解释及其应用[J].河南理工大学学报:自然科学版,2009,28(6):727-730.
[7]CERVENY V,SOARES J E.Fresnel Volume Ray Tracing[J].Geophysics,1992,57:902-915.
[8]WU R,TOKSOZ M N.Diffraction tomography and multisource holography applied to seismic imaging[J].Geophysics,1988,52:11-25.
[9]VASCO D W,PETERSON JR J E,MAJER E L.Beyond ray tomography:wavepaths and Fresnel volumes[J].Geo-physics,1995,60:1790-1804.
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