基于OMP算法五维数据规则化技术  

5D regularization processing based on OMP arithmetic in seismic data

作　　者：崔永福[1,2] 苗青[2] 党青宁[2] 吴国忱 裴广平[2] 袁源[2] 

机构地区：[1]中国石油大学地球科学与技术学院,青岛266580 [2]中国石油塔里木油田分公司勘探开发研究院,库尔勒841000

出　　处：《物探化探计算技术》2016年第1期67-73,共7页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家重点基础研究发展计划(2013CB228604);国家油气重大专项(2011ZX05046;2011ZX05019-003;2011ZX05009-003-004)

摘　　要：数据规则化技术是地震资料处理中的重要技术,它对改善地震数据的面元属性、提高地震资料的信噪比和成像质量有很大的优势。基于OMP算法五维数据规则化技术能综合利用三维地震数据的"纵向、横向、时间、偏移距、方位角"五个维度的信息,利用基于正交匹配追踪算法(OMP)实现数据规则化。与常规数据规则化方法相比,该方法规则化和插值更精确,解决了连片偏移处理中块与块之间覆盖次数不均造成的能量不均和偏移画弧问题。该技术在塔北隆起LG地震工区得到成功应用,新资料清楚地刻画出了奥陶系碳酸盐岩的潜山面,并能够更加准确地识别出奥陶系内幕孔洞型"串珠"储层特征。Regularization of seismic data is one of the important technologies in seismic data processing.It can improve bin properties,seismic S/N ratio and seismic migration imaging.It is different from the conventional data regularization methods,5Dregularization based on OPM arithmetic comprehensively utilizes 3Dseismic data in five dimensions including longitudinal coordinate,transverse coordinate,time,offset,and azimuth angle,leading to the regularization and interpolation more precise.This method is successfully applied in LunGu 7district of Tabei lift in Tarim basin.The results show that this technology solves the problem of uneven amplitude and migrating arcing caused by fold uneven between contiguous blocks in PSTM processing.The new seismic data can describe clearly the surface of burial hill of Ordovician dolomite and the ＂string＂ characteristics in interior burial hill.

关 键 词：数据规则化 五维插值 OMP算法 孔洞型储层 碳酸盐岩 

分 类 号：P631.4[天文地球—地质矿产勘探]