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测井能提供地下介质较准确的岩性参数和具有较高的垂向分辨率,但只局限于井的附近,而地震勘探有较密的横向采样,对岩性的横向变化敏感。利用三维地震资料具有大面积密集采集信息的优势,从平面和立体角度研究煤层厚度及顶底板的岩性变化,推断煤系地层岩性在平面上的变化情况,大大提高三维地震资料的纵、横向分辨率及对地质问题的研究程度。本文介绍了Strata反演软件的原理和流程,通过实际煤矿采区地震勘探资料的处理与资料分析,在大量统计的基础上建立了不同岩性与波阻抗之间的解释标准,说明了在岩性描述中的应用与成果。
Logging can provide more accurate lithology parameters and higher vertical resolution of underground media, but it is confined to the vicinity of the well. Seismic exploration has more dense lateral sampling and is sensitive to lateral changes of lithology. Using the advantages of large-scale and intensive data acquisition of 3D seismic data, this paper studies the thickness of coal seams and the lithology changes of roof and floor from the perspective of plane and perspective, deduces the change of lithology of coal measures in the plane, greatly improves the vertical and horizontal distribution of 3D seismic data, Horizontal resolution and degree of research on geological issues. In this paper, the principle and flow of Strata inversion software are introduced. Through the processing and data analysis of the seismic exploration data in the actual coal mining area, the interpretations of different lithology and wave impedance are established on the basis of a large number of statistics, Application and results in sexual description.