d:\PDF\.pdf地震共中心点道集的瞬时基准面静校正和动校正

对地震野外共炮点记录进行浮动基准面静校正后的每一个共中心点道集记录而言,其基准面仍是一局部曲面,如何使之动校正后达到同相迭加,必须作所谓瞬时基准面静、动校正处理。本文从理论上阐述了共中心道集记录的瞬时基准面静、动校正的方法和技术,并用理论模型试算验证了该方法能够消除由于局部起伏对共中心点道集记录的影响,提高时间剖面的质量、速度和解释精度,确保在山区中采用地震反射波法多次覆盖技术勘探的成功。

STATIC CORRECTION AND DYNAMIC CORRECTION OF INSTANTANEOUS DATUM PLANE FOR GATHER OF CHANNELS OF SEISMIC COMMON CENTRAL POINT

This paper has dealt theoretically with the static and dynamic correction techniques for instantaneous datum plane of records on common central point gather of channels, and demonstrated through tentative calculation with the theoretical model that this technique could eliminate the influence of local relief on the records of common central point gather of channels and raise the quality, speed and interpretation precision of the time profile, so as to ensure the success of exploration work in mountain areas with the multiple coverage technique of seismic reflection wave method.