基于地震属性分析的采空区探测技术与应用

摘要

With the existing information of the goafs and 3D seismic prospecting data,combined with the geophysical characteristics of the goafs,the authors performed technological extraction and comprehensive analysis of various attributes in one of the working areas in Linfen, Shanxi Province. Variance, three instantaneous parameters information, structure and root mean square were selected, which can effectively highlight the anomaly of the mined-out area, with the structure attributes being most important. A comparison with surface properties shows that the body properties are more reliable in qualitative interpretation of the mined-out area.%整合、兼并后的煤矿采空区严重威胁矿井生产安全,制约矿井开采效率.结合山西临汾某工区实例,利用实际工区已知采空区的地质信息、三维地震勘探资料、采空区地球物理特征与属性技术特征.进行多种属性技术提取和综合分析解释,优选出煤炭勘探中常用的方差、三瞬、构造与均方根4种属性,采空区在该4种属性中异常特征明显,且在实例工区中采掘验证吻合良好,取得了较好的探测效果.