地震混沌属性在煤矿陷落柱精细解释中的应用  

Application of Seismic Chaotic Attribute in Fine Interpretation of Coal Mine Collapse Column

作　　者：宋利虎[1] Song Lihu(Geophysical Prospecting and Research Institute,CNACG,Zhuozhou Hebei 072750,China)

机构地区：[1]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《工程地球物理学报》2022年第4期419-425,共7页Chinese Journal of Engineering Geophysics

基　　金：中国煤炭地质总局科技创新项目(编号:ZMKJ-2021-ZX04)。

摘　　要：陷落柱是影响煤矿安全生产的主要地质灾害因素之一,是煤矿安全生产的重点探测对象。三维地震是探查陷落柱等地质异常体的有效手段,为了提高陷落柱的解释精度,本文将地震混沌属性引入陷落柱精细解释中。首先通过正演模拟总结了陷落柱的地震地质特征,然后从原理上分析了混沌属性解释陷落柱的可行性,地震混沌属性是构造属性的一种,能够突出地震杂乱反射相,使得陷落柱等异常体被加强,易于识别。再以山西XY矿为例,对比分析了实际揭露的陷落柱在地震时间剖面、混沌属性剖面、沿层瞬时属性切片和层间属性上的反映特征,认为混沌层间属性能够很好地刻画陷落柱的发育边界。应用结果表明,综合分析地震混沌属性剖面和层间属性,有助于提高陷落柱的精细解释能力,为利用地震资料进行陷落柱探查提供一定的帮助。Collapse column,one of the main geological disaster factors affecting coal mine safety production is the key detection target for coal mine safety production.3D seismic exploration technology is an effective means to prospect such geological abnormal bodies as collapse columns.In order to improve the interpretation accuracy of collapse columns,this paper introduces seismic chaotic attribute into the fine interpretation of collapse columns.The seismic geological characteristics of collapse column are first summarized through forward simulation,then the feasibility of chaotic attribute interpretation of collapse column is analyzed in principle.As a kind of structural attribute,seismic chaotic attaribute can make the collapse column and other abnormal bodies strengthened and easy to identify,thus can highlight the seismic chaotic reflection phase.Taking Shanxi XY mine as an example,the reflection characteristics of the actually exposed collapse column in seismic time profile,chaotic attribute profile,instantaneous attribute slice along the layer and interlayer attribute are then compared and analyzed.It is considered that the chaotic interlayer attribute can well describe the development boundary of the collapse column.The application results show that the comprehensive analysis of seismic chaotic attribute profile and interlayer chaotic attribute characteristics are helpful to improve the fine interpretation ability of collapse column,and can provide some help for the seismic data based exploration of collapse column.

关 键 词：陷落柱 地震混沌属性 属性剖面 层间属性 

分 类 号：P631.4[天文地球—地质矿产勘探]