声波测井与地震反射波资料联合反演技术  

A joint inversion technique using acoustic logging and seismic reflection data

作　　者：杜世通[1] 

机构地区：[1]石油大学地球资源与信息学院

出　　处：《油气地球物理》2004年第4期1-18,38,共19页Petroleum Geophysics

摘　　要：现有的地震资料反演方法多是由地震资料直接求解反问题。而问题的不适定性使这种反问题是多解的,不能做出可靠的地质解释。在这种情况下,地震资料与测井资料综合处理已成为提高地震反演可靠性的关键。研究中开发了声波测井与地震反射波资料联合反演技术。主要内容包括:声学速度剖面与有效地震—地质模型的建立;声波测井资料与井旁地震记录的迭代拟合算法;地震剖面的宽带约束反演和无井条件下联合反演算法;联合反演方法的应用。在文后附录中给出了地震反演问题的基本概念和矩阵的条件数。Present seismic data inversion method directly solve the problems from seismic data. But theuncertainties ofproblems cause interpretative answers in stead of obtaining reliable geological interpretation result. Seismic data andlogging data integration has been becoming a key for improving reliabiity of seismic inversion. In the study we devel-oped a joint inversion technique of acoustic logging and seismic reflection data. The main content includes: building a-coustic velocity section and effective seismic-geological model, iteration matching algorithm for acoustic logging dataand well bore seismic record, a joint inversion algorithm of broadband constraint inversion and non-well condition.Last, in the paper we discussed the joint inversion problem. In the appendix a basic seismic inversion concept and con-ditions of matrix are given.

关 键 词：地震资料 反演方法 反射波 声波测井技术 油藏描述 地震数据 分辨率 

分 类 号：P631.44[天文地球—地质矿产勘探] P631.814[天文地球—地质学]