浅海地区工程地震勘探多次波消除方法应用  

Application of Multi-wave Elimination Methods of Engineering Seismic Exploration to Shallow Sea

作　　者：赵思为[1] 周超[1] Zhao Siwei;Zhou Chao(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu Sichuan 610031,China)

机构地区：[1]中国中铁二院工程集团有限责任公司

出　　处：《工程地球物理学报》2019年第5期635-641,共7页Chinese Journal of Engineering Geophysics

摘　　要：在多数浅海地区地震勘察记录上,多次波广泛存在,严重干扰地震偏移成像。因此在浅海地区地震记录资料处理中,多次波的衰减是一个非常重要的环节。以我国第一大填海岛——海口市东海岸人工岛填海工程地震勘察为例,应用大型石油处理软件OMEGA与PROmax中的抛物线Radon法、预测反褶积法和FK滤波法,三种算法交替衰减工程地震勘察记录中的多次波,比较其优劣。在高精度前提下,得到了较好的工程地震多次波衰减方案。Multiple waves exist widely on the seismic survey records in most shallow sea,which seriously interferes with seismic migration imaging.Therefore, the attenuation of multiple waves is an extremely important step in seismic data processing in shallow sea area.This paper adopts the three algorithms of parabola Radon method, predictive deconvolution method and F-K filtering method in OMEGA and PROmaxto alternately attenuate the multiple waves in engineering seismic exploration records by taking the seismological survey of artificial island reclamation on the east coast of Haikou city as an example.The advantages and disadvantages of the three algorithms have been analyzed and compared.Under the premise of high precision, a better scheme of multiple wave attenuation for engineering earthquakes has been obtained.

关 键 词：海上工程地震勘察 多次波 RADON变换 F—K变换 预测反褶积 

分 类 号：P631.4[天文地球—地质矿产勘探]