摘要 直流电阻率法(DC)对良导层和高阻层都反应灵敏,但对薄层出现的多解性又使问题变得复杂化;瞬变电磁方法(TEM)对良导层反应灵敏,对高阻层却不敏惑。这两种方法的联合反演能扬长避短,消除各单一方法中存在的某些缺陷,增加重要参数的个数。作者在前人工作的基础上,联合反演了模拟的 TEM 和 DC 资料,解决了层状介质中各向异性的分辨问题。
Abstract:Direct-current resistivity method is sensitive to both good conductive formation and high resistance formation; but the multiple-solution problem in the case of thin formation causes troubles. The transient electromagnetic sounding method is sensitive to good conductive formation but insensitive to high resistance formation. Their combinative inversions can bring their merits into full play but avoid their some demerits, increasing the number of important parameters.On the basis of other people's work, the author made combinative inversions of modeling data of transient electromagnetic sounding and direct-current sounding, and settled the anisotropic resolution problem for layered medium.