煤矿开采地质信息约束下的地震精细解释

Precision Seismic Interpretation under Restriction of Geological Information in Coal Mining

为深入挖掘地震数据的地质涵义,以郭家河煤矿为例,收集近年来煤矿开采揭示的地质信息,分析一次地震解释存在的问题,在解释过程中采用已知地质信息优化地震属性提取参数,优选地震属性并进行属性融合,提高地质构造解释精度;采用多参数反演方法反演地层电阻率、伽马数据体,结合矿井生产揭示信息确定阈值反演地层岩性体,在岩性数据体上解释煤层厚度。经过生产验证,地质构造与煤层厚度解释精度均有较大提高。

In order to dig the geogolical meaning of seismic data deeply, give an example with Guojiahe coal mine, collect coal geological information which Guojiahe coal mine has revealed in the past few years, then use the knowned geological information to optimize seismic property parameters, select earthquake properties and fuse the seismic properties, to improve the accuracy of the geological structure. In coal thickness interpretation, use multiparameter inversion method to invert formation lithology, determine the threshold of lithology coal in the lithology data. The fact proved that by coal geological information, explain the thickness of the accuracy has been greatly improved.