煤矿岩溶陷落柱的地震资料解释Seismic Interpretation of Subsided Column in Coalmines
师素珍,方惠明,郝海波,刘万金,何恺
摘要(Abstract):
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。
关键词(KeyWords): 陷落柱;断陷点;地震剖面;属性切片;地震勘探
基金项目(Foundation): 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)
作者(Author): 师素珍,方惠明,郝海波,刘万金,何恺
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