Omega系统巨浪噪声衰减及逐点速度分析技术的应用  

Application of Swell Noise Attenuation and Spatial Continuous Velocity Analysis Technology in Omega Processing System

作　　者：段文胜[1] 邓建峰[1] 黄录忠[1] 向东[1] 杨世明[1] 张红霞[1] 崔永福[1] 

机构地区：[1]中国石油塔里木油田分公司勘探开发研究院计算中心,新疆库尔勒841000

出　　处：《新疆石油地质》2007年第2期226-228,共3页Xinjiang Petroleum Geology

摘　　要：在塔里木盆地山地资料中常常发育有“挂面条”噪声,这类噪声的存在对后续的反褶积等处理影响很大,传统的方法难以对其进行有效的压制。基于空间中值滤波算法的巨浪噪声衰减技术对于此类噪声的衰减效果良好,但其应用存在一些限制条件。通过研究提出了一个突破这些限制的有效解决方案。逐点速度分析技术解决了常规速度分析方法存在的缺陷,它在常规动校正和切除的基础上,进行逐点CMP速度分析并自动生成速度函数。实际处理表明,该技术能进一步提高叠加速度的精度,改善构造复杂区或速度横向变化较大时的叠加成像。The noodle hang-like noise oten presented in the seismic data of mountain area in Tarim basin greatly affects the validity of following deconvolution processing,It is difficult to effectively eliminate this kind of noise using conventional methods,A new approach named swell noise attenuation ,which is based on spatial median filter arithmetic,ccan be adopted to suppress such a noise with some limitations,This paper presents spatial continuous velocity analysis technique,an efective solution to overcome these limitations,This technique depends on conventional NMO and nute as well as CMP velocity analysis,self-creates suitable velocity functions in order to resolve the deficiency existed in convention velocity analysis.The case study shows hat using this technique can be abl to further improve the precision of stacking veocity and imageing in complex structural areas or with big variation of lateral velocity.

关 键 词：塔里木盆地 地震解释 噪声 衰减 叠加速度 

分 类 号：P631.44[天文地球—地质矿产勘探]