甘肃陇东地区是典型的巨厚黄土覆盖区,黄土层厚度高达200多米,多次波发育,地震反射波能量极弱,信噪比低,处理中静校正问题较为突出。为保证目的层反射波的能量和高频信号,采用了多井大药量组合激发方式及5个60Hz检波器串接组合接收方式,排列采用大偏移距,以克服近道面波及声波的干扰。资料静校正选用浮动基准面静校正及初至折射静校正,选用了多道统计的地表一致性反褶积,以保证空间上各地震反射道之间的均一性。通过上述技术措施,取得了比较理想的地质效果,基本解决了巨厚黄土覆盖区有效波能量不足及资料处理中的难题。 Gansu Longdong area is a typical huge thick loess land cover, loess layer thickness of up to 200 meters, multiple development, seismic reflection wave energy is very weak, low signal to noise ratio, the processing of static correction problems are more prominent. In order to ensure the energy and high-frequency signal of the reflected wave of the target layer, a multi-well large-dose combination excitation method and five 60Hz geophones are used in combination with the receiving mode to arrange the large offset to overcome the interference of the near surface wave and the sound wave . Data static correction using floating datum static correction and first refraction static correction, the use of multi-channel statistical surface deconvolution used to ensure that the space between the seismic reflection of the uniformity. Through the above technical measures, the ideal geological effect has been achieved, and the problem of insufficient effective wave energy and data processing in the huge thick loess area has been basically solved.