线性Radon域地震干涉层间多次波预测方法

Internal multiples prediction based on seismic interferometry in linear Radon domain

为避免时空域地震干涉技术预测层间多次波过程中出现假象干扰,影响地震资料处理。笔者结合线性Radon变换与地震干涉技术,在线性Radon域中利用地震干涉技术预测层间多次波。通过数值模拟验证了线性Radon域地震干涉层间多次波预测方法的有效性,并将该方法应用到复杂速度模型中。结果表明,线性Radon域地震干涉技术可以有效减少时空域地震干涉技术预测层间多次波存在的假象,压缩数据体积大小,提高计算效率,并能够适用于复杂地质环境。

In order to avoid the spurious events in the internal multiples prediction based on seismic interferometry in time-space domain,which impact seismic data processing,the authors combine the linear Radon transform with seismic interferometry to predict internal multiples by seismic interferometry in linear Radon domain,of which the effectiveness has been verified through numerical simulation and the application of this method to complicated velocity model.The results show that internal multiples prediction based on seismic interferometry in linear Radon domain can suppress the spurious events in internal multiples prediction based on seismic interferometry in time-space domain,compress data to improve calculation efficiency,and is suitable for complicated geological environment.