摘要
松辽盆地北部徐家围子地区登娄库组沉积时期,盆地处于断陷末期-断陷向坳陷转化过渡期。综合分析岩心、测井、录井等资料,探讨了徐家围子地区登娄库组沉积相类型。结果表明,本区目的层段发育冲积扇、三角洲、河流、湖泛平原、湖泊5类沉积体系,细分为冲积扇、砂质辫状河、曲流河、扇三角洲、湖泛三角洲、湖泛平原和湖泊7类沉积相;垂向上登娄库组一段受断陷影响大,沉积相模式为冲积扇-扇三角洲沉积体系,登娄库组二至四段为河流-末端扇、河流-三角洲-湖泊沉积体系。
During the deposition of Denglouku Formation in Xujaweizi area,Songliao Basin was at the transition period from the end of faulted basin stage to the begining of depression basin stage.Based on the comprehensive analysis of the core and logging,this paper discusses the types of sedimentary facies of Denglouku Formation in Xujiaweizi area in order to guide the future oil and gas exploration and development.The results show that Denglouku Formation is mainly composed of seven sedimentary facies including alluvial fan,sandy braided river,meandering river,fan delta,river delta,flood plain and lake.Vertically,the first member of Denglouku Formation is influenced by faults the most whose depositional model is alluvial fan-fan delta system,and the second to fourth member is rivers-terminal fan,river-river delta-lake system.
出处
《地质科技情报》
CAS
CSCD
北大核心
2013年第4期1-6,13,共7页
Geological Science and Technology Information
基金
中国石油天然气股份有限公司科学研究与技术开发项目[06-01C-01-01(B)]
关键词
徐家围子
登娄库组
沉积相
Xujiaweizi
Denglouku Formation
sedimentary facies
