地-井瞬变电磁井旁板状导体异常响应特征分析  

Borehole transient electromagnetic method response characteristics of the borehole-side plate-like conductor

作　　者：张杰[1] 王兴春[1] 邓晓红[1] 吕国印[1] 武军杰[1] 杨毅[1] 

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,廊坊065000

出　　处：《物探化探计算技术》2014年第6期641-648,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：中国地质科学院地球物理地球化学勘查研究所基本科研业务费项目(AS2007J08)

摘　　要：在实际工作中,地-井瞬变电磁井旁盲矿的异常响应受多种因素影响,曲线特征复杂。为了研究井旁板状导体位置、埋深、产状等参数对地-井瞬变电磁异常响应的影响,这里通过数值模拟计算了四类39个理论模型,分析了板状导体倾角、埋深变化及其与钻孔距离、相对位置变化的异常响应,总结了响应特征与板体几何参数之间的内在联系规律,为定性或半定量解释井旁盲矿异常提供了依据。Borehole TEM response for blind ore is influenced by many factors,and the curve characters are so complicated. In order to investigate the influence on the response from position,depth,attitude and other factors,we made 4 kinds of 39 theoretical models for analyzing the plate's surface-borehole TEM response with different dip,depth and distance from bore-hole,and summarizes the regularity between response and plate's geometric parameters,its help for qualitative and quantitative interpretation of the blind ore body.

关 键 词：地-井瞬变电磁 井旁 板状 响应特征 

分 类 号：P631.223[天文地球—地质矿产勘探]