弱信号地震数据目标处理技术

英文篇名：Application of Targeted Seismic Data Processing for Weak Signal
中文刊名：新疆石油地质
英文刊名：Xinjiang Petroleum Geology
作者：陆道林 ; 狄帮让 ; 孙哲 ; 李向阳 ; 王世瑞
英文作者：LU Dao-lin1 ; DI Bang-rang1 ; SUN Zhe2 ; LI Xiang-yang1 ; WANG Shi-rui1(1.China University of Petroleum ; a.State Key Laboratory of Petroleum Resource and Prospecting ; b.CNPC Key Laboratory of Geophysical Exploration ; c.College of Geophysics and Information Engineering ; Beijing 102249 ; China ; 2.Acquisition Technology Support Division ; BGP ; Zhuozhou ; Hebei 072751 ; China)
中文关键词：弱信号 ; 目标处理 ; 河道砂 ; 能量补偿
英文关键词：weak signal ; targeted processing ; channel sand body ; energy compensation
出版日期：2012-04-01
机构：中国石油大学油气资源与探测国家重点实验室;中国石油大学CNPC物探重点实验室;中国石油大学地球物理与信息工程学院;东方地球物理公司采集技术支持部;
年：2012
期：02
出版单位：新疆石油地质

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.

引文

[1]张云海,蒋福友,李晓英.复杂山地三维地震资料目标处理的关键技术——以大湾构造为例[J].天然气技术,2009,3(5):14-17.
    [2]Yilmaz.Seismic data analysis—processing,inversion,and interpretation of seismic data[M].USA:Society of Explora tion Geophysicists,2001.
    [3]贺振华.反射地震资料偏移处理与反演方法[M].重庆:重庆大学出版社,1989.
    [4]凌云.叠后相对保持振幅处理研究[J].石油地球物理勘探,2003,38(5):100-105.
    [5]王振国,陈小宏,王学军,等.沙漠地区老资料的处理技术及效果分析[J].勘探地球物理进展,2007,30(2):123-129.
    [6]李淑恩,周宗良,李冰,等.大港岐北斜坡三维地震深层目标精细处理及地质效果分析[J].工程地球物理学报,2010,7(4):413-419.
    [7]熊翥.复杂地区地震资料数据处理思路[M].北京:石油工业出版社,2002.
    [8]王在民,朱江,李磊,等.振幅衰减法分频自动识别和压制异常能量道[J].新疆石油地质,2011,32(1):80-82.
    [9]熊兴银,胡太平,刘永雷,等.叠前解释技术在塔中奥陶系碳酸盐岩储集层预测中的应用[J].新疆石油地质,2011,32(3):311-313.