摘要
将变形波恩迭代方法用于处理轴对称二维非均匀介质分布中短电位测井仪测量的反演问题。使用了收敛速度快而效果好的变形波恩迭代反演方法，在每次迭代过程中采用了快速的半解析半数值的高效正演方法，用其半解析表达出了反演中所需计算的格林函数的偏导数，并在此基础上半解析地求出了反演的非线性积分方程中的积分运算。
In this paper,the distorted born iterative method(DBIM) is applied to deal with the inversion problem of the short normal device measurements in two dimensional axisymmetric medium.In each iteration of the DBIM,an effiecient half analytical half numerical method is used to solve the problem.This method provides a semianlytic expression for the Greens function and its derivatives required in the inversion,and then deduces a semianalytic expression of the integration in the nonlinear intergral equation.Therefore,the efficiency and accuracy are improved dramatically.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1997年第3期249-253,共5页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学资金
关键词
短电位测井
变形玻恩迭代
测井资料
格林函数
short normal logging
distorted born iterative method
Greens function
numerical mode matching method
