计算物理 ›› 2000, Vol. 17 ›› Issue (S1): 89-94.DOI: 10.3969/j.issn.1001-246X.2000.01.016

• 论文 • 上一篇    下一篇

利用感应测量信息快速反演地层电导率

杨峰, 聂在平   

  1. 电子科技大学微波工程系, 四川 成都 610054
  • 收稿日期:1999-08-18 修回日期:1999-09-23 出版日期:2000-12-25 发布日期:2000-12-25
  • 作者简介:杨峰(1962~),男,四川合川,副教授,博士,从事计算电破学等的研究
  • 基金资助:
    国家自然科学基金;油气藏地质及开发工程国家重点实验室开放基金

AN EFFICIENT INVERSION OF THE FORMATION CONDUCTIVITY DISTRIBUTION BASED ON THE INDUCTION MEASUREMENTS

YANG Feng, NIE Zai-ping   

  1. Dep of Microwave Engineering, UESTC, Chengdu, 610054, P R China
  • Received:1999-08-18 Revised:1999-09-23 Online:2000-12-25 Published:2000-12-25

摘要: 采用变形玻昂迭代法(DBIM)对6FF40(深感应测井仪)的测量数据进行地层剖面重建。利用6FF40的测量数据作为迭代的初始值,加快了迭代收敛速度;其次利用数值模式匹配(NMM)解的z向解析性质和径向线性插值方法,避免了双重数值积分。数值计算结果表明,上述两种方法应用后,其计算效率和反演质量均得到很大的提高。

关键词: 电磁逆散射, 变形玻昂迭代, 快速反演, 先验信息, 6FF

Abstract: Abstract]The inversion of the 6FF40 measurements with the distorted Born iterative method(DBIM) is described.Iterative numbers is decreased by using the data measured from 6FF40.Then,the close form of solution in the z direction and numerical linear interpolation in the radial direction for the eigenmodes are applied,thus avoiding multidimensional integration.Numerical simulation shows the inversion of the efficiency and accuracy improved dramatically.The method has shown to be practical for the interpretation of electrical logging data.

Key words: electromagnetic inverse scattering, distort Born iterative method, efficient inversion, prior information, 6FF40

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