毛乌素沙漠地震勘探历程及效果

The Course and Effect of Seismic Prospecting in Mu Us Desert

总结陕西省煤田地质局物探测量队在毛乌素沙漠开展地震勘探攻关的三个阶段及各阶段取得的成果,认为该区虽然表浅层地震地质条件复杂,地震勘探难度较大,但勘探精度基本上可以达到解释5m断层的的精度。并以国家重大产业技术开发专项的依托工程,内蒙古鄂托克前旗新上海庙地区SZT井田三维地震勘探为例,对地震激发、接收技术进行改进,并采取精细静校、地表一致性振幅补偿等处理手段,结合多参数信息,进行资料精细解释。成果表明:依托工程野外原始资料甲级率达到70%以上,获得的三维数据体信噪比高,构造及煤层解释成果可靠、准确。

Coal resource is rich in Mu Us desert, but the shallow and surface seismic-geologic condition is complex, seismic prospecting is difficult. The course of the research on seismic prospecting in Mu Us desert was reviewed briefly, and results summarized. The new result and effect of 3D seismic prospecting research in desert area has introduced. Based on the 3D seismic prospecting in SZT minefield in Xinshanghaimiao, Otog Front Banner, Inner Mongolia as an example, seismic shot and receiving technologies improved, processing means of fine statics and surface uniform amplitude compensation adopted, combined with multiple parameters information carried out fine interpretation. Grade A original field data of the project can be more than 70%, obtained 3D data volumes have high S/N ratio, interpretation of Stl-uetures and coal seams reliable and correct.