弱信号地震数据目标处理技术  

Application of Targeted Seismic Data Processing for Weak Signal

作　　者：陆道林[1,2,3] 狄帮让[1,2,3] 孙哲 李向阳[1,2,3] 王世瑞[1,2,3] 

机构地区：[1]中国石油大学油气资源与探测国家重点实验室,北京102249 [2]中国石油大学CNPC物探重点实验室,北京102249 [3]中国石油大学地球物理与信息工程学院,北京102249 [4]东方地球物理公司采集技术支持部,河北涿州072751

出　　处：《新疆石油地质》2012年第2期222-224,共3页Xinjiang Petroleum Geology

摘　　要：针对强反射系数界面下河道砂体弱信号地震资料,采用串联能量补偿、多域压噪和串联反褶积等技术,有效地补偿了目的层信号能量,成功解决了目的层信号较弱的问题,提高了地震资料信噪比与分辨率。将此技术用于松辽盆地南部泉四段河流相沉积体的地震资料处理与解释,能够满足河道砂体储集层识别的要求,取得较好的实际效果。To solve the problem with weak signal of target zone caused by shielding effect of overlying strata,targeted seismic data processing must be taken to improve the S/N ratio and resolution of weak signal and facilitate interpretation and reservoir description.In this paper,this targeted processing technique is applied to 3D seismic data with weak signal below the strong reflective interface,the energy of target zone is effectively compensated by combining with series energy compensation technique,noise-suppressed technique in multi-domain and series deconvolution technique,and then the problem is successfully solved.Finally,this technique is used in fluvial sediments of Quang-4 member of southern Songliao basin for seismic data processing,and better actual results are obtained.

关 键 词：弱信号 目标处理 河道砂 能量补偿 

分 类 号：P631.443[天文地球—地质矿产勘探]