一种新型井中激电装置在铜金矿上的应用  

The application of a new device of borehole induced polarization to the copper-gold deposit

作　　者：贾定宇[1,2,3] 王宇航 王桂梅 高文利 冯杰[1,2,3] 丁宗保 欧洋[1,2,3] 李洋 刘东明 JIA Ding-Yu;WANG Yu-Hang;WANG Gui-Mei;GAO Wen-Li;FENG Jie;DING Zong-Bao;OU Yang;LI Yang;LIU Dong-Ming(Institute of Geophysical and Geochemical Exploration,CAGS,Langfang 065000,China;Key Laboratory of Geophysical Electromagnetic Detection Technology,Ministry of Natural Resources,Langfang 065000,China;National Modern Geological Exploration Technology Research Center,Langfang 065000,China;CGE(Chongqing)Geological Instrument Co.,Ltd.,Chongqing 400000,China;Anhui Jinlian Geological and Mineral Technology Co.,Ltd.,Hefei 230022,China)

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [2]自然资源部地球物理电磁法探测技术重点实验室,河北廊坊065000 [3]国家现代地质勘查技术研究中心,河北廊坊065000 [4]中地装(重庆)地质仪器有限公司,重庆400000 [5]安徽金联地矿科技有限公司,安徽合肥230022

出　　处：《物探与化探》2019年第6期1205-1210,共6页Geophysical and Geochemical Exploration

基　　金：国家高技术研究发展计划(“863”计划)课题(2014AA06A608);中国地质科学院基本科研业务费专项资金资助项目(AS2016J08、AS2017J09)

摘　　要：针对现有井中激电观测方式工作效率较低以及数据质量需要提高的问题,研制出一种新型井中激电勘探装置。该装置可进行阵列全波形井中激电测量,同时采集极化场电位(V)、电位差(ΔV)和二次场电位(V2)、电位差(ΔV2)并记录时间信息(T),进而求出各种激电参数。为检测该装置的有效性,在安徽某铜金矿进行了全波形阵列井中激电的应用研究工作,判断出钻遇矿体的连通性,确定了该矿体走向及分布范围。应用结果表明:全波形阵列井中激电观测方式工作效率高,抗干扰能力强,观测数据准确可靠。Aimed at tackling the problems of low efficiency and the need of high data quality of IP observation methods in borehole,the authors developed a new device of borehole IP prospecting in this paper.The device can be used to measure the polarization field poten?tial(V),potential difference(ΔV),secondary field potential(V2),potential difference(ΔV2)and time information(T)simultane?ously by full waveform electrical method,and then obtain various IP parameters.In order to test the validity of the method,the authors studied the application of full waveform array IP to a copper?gold deposit in Anhui Province,obtained the connectivity of the drilled orebody,and determined the direction and distribution range of the orebody.The application results show that this bolehole IP observa?tion of full waveform array method has high efficiency and strong anti?interference capability.

关 键 词：井中激电 充电法 全波形数据 阵列采集 铜金矿 

分 类 号：P631[天文地球—地质矿产勘探]