【摘要】 针对深部隐伏的金属矿床,以铜陵某矿区为例,应用散射波正演模拟技术,对金属矿地震数据野外采集中涉及的偏移距、覆盖次数、道间距等参数进行了不同炮记录的模拟对比,辅助指导非均匀地质体金属矿地震勘探野外数据采集的观测系统设计;针对该地区实际采集的地震数据,应用基于等效偏移距的共散射点成像方法,对金属矿地震数据进行了处理,通过与常规反射波法处理结果对比,散射成像效果较好,说明散射波技术在金属矿地震勘探中应用有一定的可行性和适用性.更多还原

【Abstract】 It s difficult to explore the hidden metal ore since the depth of the ore deposit is larger than 500 meters, even 1000 meters.It has been a long time since the Tongling ore field was explored and produced,and the target of exploration now is focused on the ore deposit deeper than 1000 meters depth.In this paper,we applied a simulating method of the scattered wave to discuss some key parameters used in field sampling,such as offset,folds,and receiver s interval.The modeling records show that simulation of the scattered wave is helpful for the seismic data sampling in the metal ore fields,and guaranteed for a higher signal to noise ratio of the seismic data.Then,we applied the scattered wave imaging,a method based on the Common Scattered Points(CSP)profile with same equivalent offsets,to process the field seismic data.The results show as a better image than the conventional migration profile with method of reflecting wave.So we can see that the technique of scattered wave can be applied to the seismic exploration of metal ore.更多还原