以FOCUS系统为平台对塔里木盆地低信噪比地震资料处理方法探讨  

Probe into Processing Methods of Low s/n Ratio Seismic Data in Tarim Basin under the Platform of FOCUS Data Processing System

作　　者：康艳芳 王凯 李红 

机构地区：[1]西北石油局规划设计研究院,乌鲁木齐830011

出　　处：《新疆石油学院学报》2002年第3期21-24,共4页Journal of Xinjiang Petroleum Institute

摘　　要：由于地表及地下因素复杂 ,再加上表层静校正、波场复杂及有效信号提取难、速度场复杂以致成像精度低等各方面因素 ,给塔里木盆地巴楚地区地震资料处理工作带来了很大的难度。针对该区低信噪比资料的特点 ,曾以WGC批处理软件平台上建立的低信噪比地震资料处理方法技术难以适应勘探开发的需要。为此 1 999年在引进的FOCUS交互处理软件的平台上 ,充分利用FOCUS处理软件灵活方便的交互手段及数据库管理方法 ,开发了一套较完善的低信噪比地震资料处理的技术方法 ,并在实际资料处理应用中取得了良好的效果。本文就解决该区低信噪比资料处理所采用的具体技术思路方法 ,以及所取得的初步成果作简要介绍 。All the elements of different aspect such as complication of surface and underground factors, surface static correction, complicated wave field, the difficulty of extraction of effective signal, low imagery precision due to complicated velocity field bring the prodigious difficulty to the seismic data processing work in Tarim basin. The seismic data processing methods on WGC software in terms of the characteristics of the low s/n data in this region can't adapt to the need of exploration and development. So comparatively perfect processing methods of seismic data with low s/n has been developed in FOCUS software by taking advantage of the flexible and convenient interfacial method and database management. The concrete technical methods and the primary results introduced here aims at the low s/n data processing in order to promote the processing level with low s/n under the condition of complicated surface.

关 键 词：FOCUS系统 地震勘探 塔里木盆地 低信噪比 地震资料处理方法 表层静校 折射静校 成像 偏移归位 

分 类 号：P631.443[天文地球—地质矿产勘探]