三维广义表面多次波预测技术在高邮火成岩区的应用研究

Application of 3D generalized surface multiple wave prediction technique in Gaoyou igneous rock area

高邮凹陷火成岩区多次波发育、干扰作用强,给地震资料处理和解释带来困难。而基于时差的Radon变换方法压制多次波效果有限,基于波动的3DSRME方法受高邮地区复杂地表障碍的影响也难以取得较好的压制效果。为此引入三维广义表面多次波预测技术,并对其方法原理、适应条件及应用方法进行了研究,指出其适用范围并建立了处理流程。实际应用表明该方法能够较好的应对陆地采集变观,有效的预测出自由表面多次波模型,与Radon变换方法相比,多次波压制效果优势明显。

The development of multiple waves and strong interference in the igneous rock area of Gaoyou Sag brings difficulties to seismic data processing and interpretation.However,the Radon transform method based on time difference has limited suppression effects,and the 3 DSRME method based on fluctuation is affected by the complex surface obstacles in Gaoyou area,and it is difficult to achieve better suppression effects.For this reason,the three-dimensional generalized surface multiple-wave prediction technique was introduced,and its principle,adaptability,and application methods were studied,its applicable scope was pointed out,and the processing flow was established.Practical applications show that this method can better cope with the changes in land acquisition,and effectively predict the free surface multiple wave model.Compared with the Radon transform method,the multiple wave suppression effect has an obvious advantage.