Extrapolate well logs based on the constrained interpolation algorithm  

基于约束插值算法的井资料外推(英文)

作　　者：刘红伟[1,2] 刘洪 秦月霜[3] 首皓[4] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]中国地质大学(北京)地质过程与矿产资源国家重点实验室,北京100083 [3]中国石油大庆油田有限责任公司,大庆163712 [4]中国石油勘探开发研究院,北京100083

出　　处：《Applied Geophysics》2008年第4期307-313,共7页应用地球物理（英文版）

基　　金：supported by National Natural Science Foundation of China (Grant No. 40674072);National Hi-techResearch and Development Program of China (863 Program) (Grant No. 2006AA09A102-08);National Basic ResearchProgram of China (the 973 Program. Grant No. 007CB209603) ;the Opening fund of State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences (GPMR200633)

摘　　要：Based on a detailed analysis of differences between seismic data and well logs, we discuss the problem of matching seismic traces and well logs and present a new matching method based on event search in instantaneous phase which greatly improves seismic resolution. The method is based on flattening events in instantaneous phase to compare the seismic traces to the well log traces with the same phase. We calculate the coefficients using the singular value decomposition method to extrapolate the well logs. As a result, the events in the seismic profile are continuous and match well with well logs. We apply this method to the Mao-2 well in Daqing Oilfield with good results.本文在详细分析地震和测井方法属性差异的础上,系统讨论了声测井和地震资料的匹配问题,提出了一种基于瞬时相位地层追踪的井震匹配方法。通过同相轴拉平技术使地震资料和井旁道资料同相位对比,运用SVD方法求解方程得到插值系数,并利用插值系数把测井资料外推,从而得到同相轴连续,分辨率高,同时在井孔与测井资料能够匹配的地震资料。本方法应用于大庆mao2井区数据,得到了很好的效果。

关 键 词：events flattening SVD method instantaneous phase CORRELATION 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]