【摘要】 为获得高信噪比和高分辨率的叠加剖面,需要校平CMP道集的同相轴,消除各种时差,实现真正的同相位叠加.给出利用相位替换剩余时差校正方法,结合理论模型和实际资料,分析相位替换剩余时差校正提高分辨率方法.结果表明,选取合适的参考道,相位替换剩余时差校正在理论上可以消除任何时差,该方法可有效提高地震资料的信噪比和分辨率.更多还原

【Abstract】 It is necessary to eliminate any moveout,align lineups and achieve the homology phase stacking in CMP seismic gathers.In order to get stacked seismic sections of improving resolution and signal-noise ratio,emphatic study was carried out by analyzing previous authors’ results,theoretical models and real seismic data to improve the resolution,aimed at the method of moveout correction,in which the arrival times of seismic waves contain the phase spectrum of seismic trace.Theoretically the method can eliminate any moveout if the selection of reference trace is appropriate.This method actually proves that it can improve the resolution and signal-noise ratio of seismic data.更多还原