三套国外TEM软件正反演结果对比

在对三套国外瞬变电磁软件Maxwell、EM vision和Emigma研究分析的基础上,设计均匀半空间、层状介质和均匀半空间加载板状体及棱柱体的模型,逐一比较分析三套软件的异同,并进行了均匀半空间和层状介质的1D反演,通过模拟计算和结果分析,比较不同条件下各软件的特点和结算结果的准确性。结果表明,在均匀半空间和层状介质条件下,三套软件的正演计算结果能完全吻合,但瞬变电磁3D正演问题还未从根本上得以解决。

A COMPARISON AND ANALYSIS OF THREE SETS OF TEM SOFTWARE ABROAD

On the basis of a study and analysis of three sets of dominant transient electromagnetic software abroad(Maxwell,EM vision and Emigma),the authors designed tabular or prismatic bodies with homogeneous half-space,layered earth and homogeneous half-space and compares the difference between them.1D inversion was carried out with homogeneous half-space and layered earth too.The forward and inversion results have led the authors to reach the conclusion that in some circumstances these sets of software can yield the same results,but there still exist some differences under different conditions.