海洋拖缆地震勘探中的电子干扰识别和排查方法  

The Methods of Identification and Investigation of Electronic Interference in Marine Towed Streamer Seismic Exploration

作　　者：李慧龙[1] 刘建军 姜丹[1] 王洪锋 韩鹏 赵仲兴 Li Huilong;Liu Jianjun;Jiang Dan;Wang Hong{eng;Han Peng;Zhao Zhongxing(Geophysical China Oil field Ser＇~ices Limited,Tianjin 300451)

机构地区：[1]中海油田服务股份有限公司物探事业部,天津300451

出　　处：《工程地球物理学报》2018年第5期555-561,共7页Chinese Journal of Engineering Geophysics

基　　金：中海油服科研项目(编号:WTB18YF004)

摘　　要：在海洋地震勘探过程中,经常遇到一些电子干扰噪音,由于现场设备众多,很难识别和排查,严重时,电子干扰会降低资料的信噪比,影响资料的品质。简要介绍了拖缆的作业模式,根据现场实际作业情况,分析了电子干扰的形成机理,在此基础上提出通过共炮点叠加技术来识别电子干扰,并总结了电子干扰的经验排查及解决方法。实际生产应用表明,本文提出的识别排查方法能够及时准确地识别出电子干扰,找到干扰源并成功解决电子干扰问题。该方法提高了质量控制的精度,保证了资料质量,对海洋地震勘探的发展起到了推动促进作用。In theprocess of marine seismic exploration , some electronic interference often is encountered. Due to the large number of field devices, it is difficult to identify and check it. In serious cases, it will reduce the signal to noise ratio of data and affect the quality of data. The author briefly introduces the operation mode of tow streamer exploration, ac cording to the actual operation situation in field, and analyzes the forming mechanism of e lectronic interference. On this basis, a common shot stack technique is proposed to identify electronic interference , and summarizes the experiential overhaul and solution methods. The application in actual production shows that the method presented in this paper can i dentify electronic interference in time and accurately, find the source of interference and

关 键 词：电子干扰 共炮点叠加 现场质控 识别排查 尾标 声学设备 

分 类 号：P631.4[天文地球—地质矿产勘探]