摘要
以总结断裂控制特征为目的,采用盆地构造解析法,分析了柴达木盆地北缘断裂特征及油气圈闭成因类型.结果表明:柴达木盆地北缘断裂平面展布具有南北成带,东西分块的特征;纵向上分为发育深层和浅层两大断裂系统;断裂控制褶皱形成和演化;油气分布严格受断裂控制;具有断裂反转型、地层反转型、同生隆起型和挤压褶皱型四大成因类型油气圈闭类型.其中断裂反转型、同生隆起型最有利于油气聚集.
Aiming at generalizing fault controlling role in oil migration, basin analyzing method is employed. Research results reveal that the fault has two main features of zonal distribution in north-south strike and block distribution in east-west strike on the plane. There are two kinds of fault system of deep and shallow in the longitudinal profile, the fault control fold tectonic forming and evolution. The oil and gas distribution is controlled strictly by fault action. There are four formation origins of petroleum traps called fault-reversed type, stratigraphy-reversed type, contemporaneous-rift type and compressive fold type in research region,among which fault-reversed type and contemporaneous rift type are the most significant petroleum trap types.
出处
《大庆石油学院学报》
CAS
北大核心
2006年第2期13-15,25,共4页
Journal of Daqing Petroleum Institute
基金
国家973重大基础研究项目(61999043310)
关键词
断裂特征
演化模式
油气圈闭
成因类型
柴达木盆地北缘
fault feature
evolution model
petroleum trap
forming origin type
north of Qaidam Basin
