地—井瞬变电磁关键技术问题研究

地—井瞬变电磁法在加拿大、澳大利亚等国的勘查实践中已取得了很好的效果,国内由于缺乏从仪器设备到资料处理解释的整套技术,使得该方法未能被广泛应用。为此,研制了地—井瞬变电磁仪器,同时系统地研究了地—井三分量坐标系的确定、探头角度系统偏差的测定、三分量的校正运算、勘查目标体方位及距离的分析与计算等,并在实际的地—井瞬变电磁观测中获得了良好的应用效果。

Research on key technical problems of surface-borehole TEM

Surface-borehole TEM method has achieved good results in exploration in Canada and Australia. Due to the lack of complete technology from equipment to data processing and interpretation, the method has not been widely used in China. The authors developed the surface-borehole TEM instrument and, at the same time, systematically studied the determination of the three component coordinates of the surface-borehole TEM, the measurement of the deviation of the probe angle, the correction of the three components, and the analysis and calculation of the orientation and distance of the target body, which achieved good application results in actual measurement.