储层激电模型的瞬变电磁场模拟  

The Simulation of Transient Electromagnetic Field Based on Reservoir Induced Polarization(IP)Model

作　　者：周磊[1] 严良俊[1] 谢兴兵[1] 隋俊杰[2] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北武汉430100 [2]中国石化石油物探技术研究院,江苏南京210000

出　　处：《长江大学学报（自科版）（中旬）》2015年第4期22-24,4,共3页Journal of Yangtze University(Nature Science Edition)

基　　金：国家"973"规划项目(2013CB228605);国家自然科学基金项目(41274082);油气资源与勘探技术教育部重点实验室(长江大学)开放基金资助项目(K2014-13)

摘　　要：在时间域将Cole-Cole模型引入到长偏移距瞬变电磁场的正演模拟中,并验证了算法的正确性。对某油田实际地电模型数值模拟可知,当油气储层存在激电时,电场对激电效应的反映比垂直磁场的时间导数要灵敏,这对指导时域激电和长偏移距瞬变电磁法在油田中的勘探应用具有重要意义。The Cole-Cole model was introduced to the forward modeling of long offset transient electromagnetic field in the time domain,and the correctness of the algorithm was verified.The numerical results of actual geoelectric model in an oilfield show that when oil-gas reservoir contains an induced polarization,the electric field is more sensitive than that of a time derivative of vertical magnetic field.And it is of great significant for guiding oil and gas exploration in oilfields by using the methods of time domain induced polarization and long offset transient electromagnetic field.

关 键 词：储层 长偏移距瞬变电磁法 时域Cole-Cole模型 激电效应 

分 类 号：P631.325[天文地球—地质矿产勘探]