应用地震技术在济宁矿区预测岩浆岩侵入范围

Application of seismic technology on prediction of magmatic rock intrusion range in Jining mining area

济宁矿区主采煤层存在岩浆岩侵入现象,且具有侵入方式复杂、分布范围广等特点,常规地震勘探数据处理解释方法很难精确确定其侵入范围。针对该问题,应用三维地震叠前时间偏移技术,综合运用基于波形差异的地震相分析技术和地震属性分析技术,对岩浆岩侵入煤层范围进行预测,通过钻孔和巷道揭露信息进行验证,取得了较好的效果。

In Jining mining area,there is the phenomenon of magmatic rock intrusion in the main mining coal seam,which is characterized by complex intrusion modes and wide distribution range.It is difficult to accurately determine the intrusive range by conventional seismic exploration data processing and interpretation methods.In view of this problem,3D seismic prestack time migration technology,the seismic face analysis technology on the basis of waveform differences and seismic attribute analysis technology are used to predict the magmatic rock intrusion range.This method is proved to be effective by the exposed information of drilling hole and mining tunnel.