论文部分内容阅读
SRME是海上地震资料多次波衰减的主要手段,在深水资料应用效果较好.但在浅水环境下,受近偏移距数据的缺失以及折射波干扰的影响,该方法对浅水自由表面多次波的消除压制效果不甚理想.针对这个问题,本文对SRME进行一系列的改进,即在SRME褶积建模过程中,引入格林函数预测多次波模型,解决了浅水海底反射和直达波不能区分以及折射波干扰的问题,在模型测试及实际资料应用中取得较好的效果.
SRME is the main means of multifrequency attenuation of marine seismic data, and it is effective in deepwater data. However, in shallow water, due to the lack of near-offset data and the influence of refracted wave, In this paper, a series of improvements to SRME are carried out in this paper. In the process of SRME convolution modeling, Green’s function is introduced to predict the multiple-wave model, which can solve the problem that shallow seafloor reflection and direct wave can not Distinguish and refraction wave interference problems, and achieved good results in the model test and practical data applications.