摘要
以现有的岩心、钻/测井、地震资料为基础,运用高分辨率层序地层学理论与研究方法,通过对高柳地区古近系东营组层序地层关键界面的识别与对比,建立了研究区层序地层格架,东营组共发育5个具有等时意义的层序界面,将其划分为4个中期基准面旋回。分析了各个层序的沉积特征,认为主要发育有扇三角洲、近岸水下扇和湖泊沉积等沉积体系,不同层序发育时期及不同地理位置,其沉积体系类型及分布有较大差异。
Based on the available core,drilling,logging and seismic data in the studied area,the theory and method were deployed to establish a sequence stratigraphic framework by recognizing and comparing the critical sequence boundaries in Palaeogane Yingcheng Formation of Gaoliu Area. There develops five sequence boundaries of high isochronic significance within Dongying Formation in which four mid-term base level cycles are divided. The sedimentary characteristics of each sequence are analyzed,it is considered that the depositional system of fan delta,near-shore subaqueous fans and lacustrine facies are developed,the distribution of depositional system are greatly different in different sequence growing times and in different time and locations.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第4期200-203,共4页
Journal of Oil and Gas Technology
关键词
基准面旋回
高分辨率层序地层
东营组
沉积相
base level cycle
high resolution sequence stratigraphy
Dongying Formation
sedimentary facies
