复杂山地地震资料处理技术  

Processing Technology of Complex Mountain Seismic Data

作　　者：杜贤 牛佳文 杜林轩 Xian Du;Jiawen Niu;Linxuan Du(CNOOC EnerTech-Drilling&Production Co.,Tianjin,300459,China)

机构地区：[1]中海油能源发展工程技术公司,天津300459

出　　处：《工程技术与管理（新加坡）》2020年第1期152-155,共4页Engineering Technology & Management

摘　　要：巴布亚新几内亚山地位于巴布亚盆地Papuan褶皱带上的山麓地带,波场受到衰减和破坏严重,二维地震资料次生干扰严重,资料信噪比极低,静校正量大。针对该区的地震资料特点,在地震资料处理中,采用建立全区统一浮动基准面网与交互叠代折射静校正,区域异常振幅衰减,地表一致性补偿,人工交互拾取叠加速度,保护浅层信息,衰减随机噪音,径向预测滤波等技术为主的处理流程与手段。得到了较好的处理效果,为地质解释人员提供了较高信噪比的地震剖面。The mountainous area of Papua New Guinea are located in the piedmont zone of Papuan fold belt in the Papua basin.In this area,the wave field is seriously attenuated and destroyed,the secondary interference of two-dimensional seismic data is serious,the signal-tonoise ratio of data is very low,and the static correction is large.According to the characteristics of seismic data in seismic data processing,it is suggested to adopt proper data processing technologies and means including establishment of uniform floating datum net and interactive iterative refraction static correction,regional anomaly amplitude attenuation,surface consistency compensation,interactive stacking velocity,protection of shallow layer information,the attenuation of random noise,radial prediction filtering technology and so do.The result demonstrates that the seismic profile with high signal-to-noise ratio can be obtained.

关 键 词：巴布亚新几内亚 山地 静校正 信噪比 地震剖面 

分 类 号：P31[天文地球—固体地球物理学]