摘要
孤北洼陷沙四上段是多物源、小洼陷滩坝砂岩勘探的典型代表,主要发育3种沉积类型:滨浅湖滩坝、水下冲积扇、扇三角洲。本文在层序地层分析的基础上,阐明了各沉积类型的岩性特征、识别标志等,分析了沉积体系分布与古构造的匹配关系,总结了3种沉积类型储层的平面分布规律,指导了该层系的勘探部署。
It is the typical representative of beach bar sandstone for multiple source、small sag in Gubei subsag Sha No.4 upper section。The main development three sedimentation types：beach bar sand reservoirs of shore-shallow lake facies、 underwater alluvial fan、fan delta.In this paper,on the basis of sequence stratigraphic analysis,expounds the sedimentary types of lithology,identification mark,analysis of the distribution of sedimentary system and ancient structure matching relationship,summarized the plane distribution of three types sedimentary reservoir,guiding the strata exploration deployment.
出处
《科技通报》
北大核心
2013年第2期16-18,共3页
Bulletin of Science and Technology
基金
"十二五"国家科技重大专项项目(2011ZX05006-002)
关键词
滩坝砂岩
水下冲积扇
扇三角洲
储层分布
beach bar sandstone
underwater alluvial fan
fan delta
distribution of reservoir
