Abstract：Taking land 3D seismic data in Block Amal in Oman as an example, this paper mainly describes some methods for multiples recognition such as autocorrelations of CMP gather, velocity spectrum,stack section and time slices to study multiple characteristics.Based on the above discussion, we choose the beam-forming filtering to attenuate multiples in the pre-stack processing.In this way the quality of velocity spectrum is improved, and the velocity of primary reflection is obtained.In the post-stack stage, the local multi-traces coherent tiltering method is used to attenuate remnant mliples.Application results of 3D seismic data in Block Amal in Oman prove the efficiency of the approach.
王学军, 李虹, 郭惠英, 张占江, 王伟. 阿曼Amal区块地震数据中复杂多次波的分析与压制[J]. 石油地球物理勘探, 2012, 47(6): 894-900.
Wang Xuejun, Li Hong, Guo Huiying, Zhang Zhanjiang, Wang Wei. Analysis and suppression of complex multiples for land seismic data in Block Amal,Oman. OGP, 2012, 47(6): 894-900.
