地-井激发极化法确定井底盲矿体的应用

Application of Ground-well Induced Polarization Method to Determine Bottom Hole Blind Orebody

为了有效判别井底和井旁盲矿体的平面展布和空间位置,采用时间域井中激发极化法中的地-井方式,以钻孔中根据不同方向的井位观测到的视极化率异常为结果,研究盲矿异常在井中的激电响应特征,以新疆某矿区工程为例,分析激电异常与盲矿体的对应关系,总结归纳井中激电规律,验证此方法的适用情况,对指导下一步勘探工作具有积极作用。

In order to effectively determine the plane distribution and spatial position of the blind ore body in the bottom Of the well or nearby the well,introduces the borehole induced polarization (IP) method,and applies the ground-well mode,then through researching the characteristics of the borehole IP response of the blind ore body anomaly in a certain mining area of Xinjiang and analyzing the corresponding relationship between the abnormal and the blind ore body,sums up the law of borehole IP response and verifies the application of this method,which will play an positive role in guiding the next exoloration work.