【摘要】 干厚黄土覆盖地区表浅层黄土结构疏松、无潜水位,对地震波吸收强烈,难以开展三维地震勘探,特别是在煤层埋深浅的干厚黄土覆盖丘陵地区。在河东煤田某矿区,经多次试验,采取“高叠加次数、小炮检距、单深井激发、组合接收”等采集技术措施,使用绿山初至折射静校正方法及浮动基准面叠加方法的资料处理技术,最终有效地压制了干扰,提高了信噪比,使反射波更加突出,成像效果明显。更多还原

【Abstract】 Since the dry and thick loess overburden has loose structure and without groundwater level,so it has strong absorptivity to seismic waves and very hard to carry out 3D seismic prospecting,especially in hilly ground shallow buried coal areas.In a mining area of Hedong coalfield, after multiple tests,we adopted ″multiple stacks, small offsets, single deep-well exciting, combined receiving″ data collection technical measures,used Green Mountain first arrival refraction static correction and relocatable datum planes stacking data processing techniques,finally suppressed noises effectively.It raised signal-noise ratio, standout reflected waves and made the imaging effect distinctly.更多还原