【摘要】 本文针对低信噪比、剩余静校正量较大的地震资料,提出了分别计算炮点和检波点剩余静校正量的共地面点剩余静校正方法。该法基于经过动校正后的共炮点数据集和共检波点数据集分别求取检波点剩余静校正量和炮点剩余静校正量,并分别将共炮、检点道集动校正后的叠加道作为模型道与道集内各个道进行互相关,求出各个炮、检波点的剩余静校正量。理论和实际数据的测试表明,这种方法可以解决低信噪比、剩余静校正量较大地震资料的静校正问题。更多还原

【Abstract】 For the seismic data with low signal to noise ratio and large residual static correction,the common surface point residual static correction method in which the residual static correction for shot point and receiver were respectively calculated was proposed in this paper.Based on the NMO common shot point gathers and NMO common receiver point gathers,the residual static correction on both receiver and shot points were respectively estimated by cross-correlating each trace in the gathers with the model traces which were the stacking traces of the NMO common shot point gathers or the NMO common receiver point gathers respectively.The testing for the theoretical and field data shows that the method could solve the static correction problem for the seismic data with low signal to noise ratio and the large residual static correction.更多还原