大地电磁测深在库木库里盆地结构研究中的应用  

Application of MT in Structural Study of Kumukuli Basin

作　　者：陈孝雄[1] 王友胜[2] 黄潜生[2] 

机构地区：[1]中国地质大学(武汉)地球物理与空间信息学院,湖北武汉430074 [2]江汉石油管理局物探公司,湖北潜江433100

出　　处：《石油天然气学报》2007年第6期78-81,共4页Journal of Oil and Gas Technology

摘　　要：通过应用库木库里盆地区域地质资料及2条重磁力测线资料,对盆地的2条大地电磁测深(MT)剖面进行了精细反演。以小四极电测深、MT首支曲线统计和MT反演电阻率等资料为基础,对库木库里盆地物性进行了分析研究;以岩石物性为桥梁,通过地质地球物理模型的建立和MT层状电阻率反演、重力-电法联合反演和综合解释,进一步了解了盆地基底性质、形态和埋深,划分了构造单元;了解了盆地地层格架及空间展布特征和盆地结构与断裂的特征;结合已有的石油地质认识和MT资料研究成果对有利勘探区进行了评价。By using areal geologic data and 2 heavy gravity lines in Kumukuli Basin,2 MT profiles in the basin were reversed precisely.Based on the data of electric log,the first curve from MT and MT reverse resistivity,the physical property of the basin was analyzed.In combination with rock physical property,the characteristics of the basin base,shape and buried depth are further studied and structural units are identified by establishing geologic and geophysical models,reverse of laminar MT resistivity and gravity-electric integral reverse and comprehensive interpretation.Its formation framework and spatial distributive characteristics and the characteristics of its structure and fracture are identified;the beneficial exploration areas are evaluated in combination with geologic and MT data.

关 键 词：大地电磁测深(MT) 库木库里盆地 MT层状介质反演 重力-电法联合反演 盆地结构 

分 类 号：P631.3[天文地球—地质矿产勘探]