The traditional method to improve the resolution in electromagnetic inversion is increasing
the number of iterations, which displays poor nonlinear mapping and strong nonuniqueness …

In recent decades, colleagues working in the Discipline of Geological Resources and
Geological Engineering at Central South University made significant progress in theoretic …

三维陆地可控源电磁法有限元快速正演的主要瓶颈在于多频率大型稀疏方程组求解问题.
本文引入一种基于模型降阶的Krylov 子空间投影算法, 推导了有限元刚度矩阵的模型降阶形式 …

摘要随钻超深前视电阻率测井是一种新型井中电磁测量技术, 能够实现复杂储层探测和开发中井
眼轨迹优化与地质导向. 本文将基于二次场耦合势三维有限体积法建立一套非均质各向异性地层 …

In this study, the equivalent boundary approach is applied to quickly compute the
electromagnetic (EM) fields of planar-distribution sources in fully anisotropic planar-stratified …

To determine the electromagnetic (EM) fields of different three-dimensional (3D) controlled-
source electromagnetic methods (CSEMs) using the same parameters of the forward …

基于层状单轴各向异性介质的并矢Green 函数和体积分方程的弱化稳定型双共轭梯度(BCGS)
算法模拟各向异性背景地层中多分量低频海洋可控源电磁响应, 并通过算例分析发射频率 …

The main bottleneck of fast forward modeling of 3-D land controlled-source electromagnetics
based on the finite element method lies in solving multi-frequency large-scale sparse …

摘要为了提高广域电磁法三维正演精度和效率, 本文提出采用基于Gauss Lobatto Legendre
(GLL) 多项式的谱元法进行广域电磁法三维正演模拟. 首先从麦克斯韦方程组出发 …

快速的电磁法正演模拟是反演的核心要素之一. 本文针对陆地可控源电磁(CSEM) 问题,
实现了三维多频的快速正演. 首先基于电场的微分控制方程, 利用非结构化网格和伽辽金方法 …