【摘要】 可控源音频大地电磁测深法的勘查深度问题在理论研究和实际工作中都得到了广泛的关注,本文分析了水平层状大地电磁正反演方法的基本原理,说明了可控源音频大地电磁测深法在深部勘查方面具有可靠性.通过建立两个三层地电模型,并对吉林某地区的CSAMT实测数据进行了带源反演成像,与已知钻井资料对比分析表明,可控源音频大地电磁测深法对地下1000~2000 m深度的反演较为准确,能够反映地下电性的垂向变化.更多还原

【Abstract】 Study on the sounding of CSAMT is wide attention in theoretical research and practical word.This paper analyzes the basic principle of forward mothod and inversion mothod on dipole electrode source in horizontal-layered earths.And indicate the CSAMT is reliability in terms of deep exploration.The result shows a good effect on application by comparison with known drilling data and CSAMT inversion result.The inversion mothod is accurate at 1000-2000 meters underground with CSAMT and reflect the changes of the vertical subsurface electric vividly.更多还原