介绍了井中瞬变电磁方法原理及资料解释原则。以江西相山CUSD3钻孔为例,通过对井中瞬变电磁实测资料分析,大致推断了钴孔周边铅锌矿化中心的方位,表明该方法在探测火山岩良导电体中具有较好的应用效果。结合岩心编录结果,认为该方法具有较高的探测精度,能够识别钻孔附近岩性界面、构造破碎等铀成矿、控矿要素,可辅助进一步的铀矿勘查工作。 The principle of transient electromagnetic method in wells and the principle of data interpretation are introduced. Taking the phase CUSD3 drilling in Xiangshan, Jiangxi Province as an example, the azimuth of the lead-zinc mineralization center around the cobalt hole is roughly deduced from the measured data of transient electromagnetic in the well, which shows that the method has good application effect in detecting the good conductor of volcanic rock . Combined with the core cataloging results, the method is considered to have high detection accuracy, to identify lithologic interfaces near the borehole, to construct uranium metallogenic and ore-controlling elements such as crushing, and to assist further uranium exploration.