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针对煤田陷落柱高分辨率地震探测技术存在诸多技术难点的问题,对包含长轴分别为80 m、25 m、50 m、15 m,陷落柱高度不等、充填物质不一(包括松散充填与空气充填)的4个形状不规则陷落柱三维地震地质模型进行了三维地震单程声波正演数值模拟;提取了包括振幅、能量、频率、波形、方差属性和相干属性等在内的50种地震属性;从目视解释角度优选了包含振幅、能量、时间间隔以及方差和相干在内的18种敏感属性。利用图像分析技术对18种敏感属性与原始地质剖面的相似度进行了分析,获得了对陷落柱敏感地震属性的排序,为今后陷落柱的地震解释提供了理论依据。
There are many technical difficulties in the exploration of karst collapsible high-resolution seismic data. There are many technical difficulties in the exploration of karst collapsible column seismic data. Including the different height of the karst columns with long axes of 80 m, 25 m, 50 m, 15 m, Air Filling) were used to simulate the three-dimensional seismic forward modeling of three-dimensional seismic data. Fifty seismic attributes including amplitude, energy, frequency, waveform, variance and coherence were extracted. From the perspective of visual interpretation, 18 sensitive attributes including amplitude, energy, time interval and variance and coherence were optimized. The similarity between 18 sensitive attributes and the original geological profile was analyzed by using image analysis technique, and the order of sensitive seismic attributes to the collapse column was obtained, which provided a theoretical basis for future seismic interpretation of the collapse column.