摘要
运用层序地层学基本原理,充分利用地震、测井、录井等资料,综合岩性、电性及旋回特征,以层序地层等时对比的思路,对牛青地区沙三段地层进行划分与对比,发现牛青地区沙三段地层为一完整的三级层序,并对湖泛面进行识别,进一步划分出低位、水进、高位3个体系域,建立了沙三段的层序地层格架。认为沙三段地层整体是一个湖平面先上升后下降的沉积过程,在水进域沉积结束时湖水最深。
Using the basic principles of sequence stratigraphy,by making full use of seismic,well logs and log data,et al,through a comprehensive analysis of lithology,electrical and cycle characteristic,the formation of Es3in Nuqing area was divided by using the isochronous correlation idea of sequence stratigraphy.we found that the Es3in Nuqing area is a complete third-order sequence,and the flooding surfaces were identified,the formation was further diveded into lowstand,transgressive and highstand 3 system tracts,and established the sequence stratigraphic framework of Es3.Overall,the lake level of Es3was increased at first and then decreased,and at the end of the transgressive system tract was the deepest.
出处
《内蒙古石油化工》
CAS
2013年第14期122-124,共3页
Inner Mongolia Petrochemical Industry
基金
国家油气重大专项(2008ZX05007-001)资助
关键词
牛青地区
沉积相
层序地层
体系域
Nuqing area
Sedimentary facies
Sequence stratigraphy
System tract
