煤矿岩溶陷落柱的地震资料解释  

Seismic Interpretation of Subsided Column in Coalmines

作　　者：师素珍[1] 方惠明 郝海波[1] 刘万金[1] 何恺[1] 

机构地区：[1]中国矿业大学,煤炭资源与安全开采国家重点实验室,北京100083 [2]江苏煤炭地质局,江苏南京210046

出　　处：《中国煤炭地质》2009年第6期59-61,70,共4页Coal Geology of China

基　　金：国家"973"项目(2006cb202209);国家"973"项目(2002cb211707);国家自然基金重大项目(50490271);国家创新研究群体基金(50221402);教育部"长江学者和创新团队发展计划"(IRT0408);国家杰出青年基金项目(50025413)

摘　　要：陷落柱赋存特点及其与围岩地层的物性差异,决定了其陷落柱特殊的地震响应特征:如地震剖面出现同相轴的中断、扭曲、弯曲、倾斜现象以及振幅、波形、频率等动力学特征突变现象,另外还可见异常波;在属性切片上其形态特征表现为椭圆形、似圆形,有时可见到长条形或串珠状。断陷点的解释是陷落柱解释的关键,为此利用放射状、网格状测线切出的剖面来解释陷落柱,能够基本控制断陷点的位置,再配合属性切片、三维可视化显示等解释手段,全方位、多角度地对数据体进行分析,大大提高了解释陷落柱的准确度。运用该种方法解释的成果已得到实际资料的验证。The hosting features and physical property differences with surrounding rock of subsided columns decide their special seismic response characteristics. Such as phenomena of breaking lineups, twisting, bending and tilting on seismic sections, as well as amplitude, waveform, frequency kinetic feature mutations, besides, abnormal events; shape characteristics on attribute slice have ellipse, circle-like, sometimes long strip or beaded. The interpretation of breaking point is the key of subsided column interpretation, for this, sections derived from radial, latticed traverses are used in interpretation, thus can basically control the locations of breaking points. Then combined with means of attribute slice, 3D visualization, carry out omnidirectional, multi-angled data volume analyses, thus can improve accuracy of subsided column interpretation greatly. The method is already verified in practices.

关 键 词：陷落柱 断陷点 地震剖面 属性切片 地震勘探 

分 类 号：P631.4[天文地球—地质矿产勘探]