摘要
萨尔图油层大部分薄层砂处于原始状态,砂体厚度薄,钻遇率低,水淹程度差,是目前在油田生产研究系统中重要储藏油气类型之一,也是目前重点开发的部位。对杏八区西萨尔图油层进行精细解剖,对地层进行精细的划分与对比,建立了431口井6个沉积时间单元的层序地层格架,根据不同沉积微相的特点建立研究区三角洲前缘亚相16种测井微相模式,包括水下分流河道、水下分流间薄层砂、席状砂、远砂坝等沉积微相,确定了6个沉积时间单元的平面微相特征,为进一步研究储层的特征奠定基础。
Most of the thin sand in the Saertu oil-bearing layer is in its original state,with thin sand body thickness,low drilling encounter rate,and poor water flooding.It is currently one of the important reservoir types in the oilfield production research system and is currently a key development site.The Saertu oil-bearing layer in West Xingba Area,Daqing Oilfield was finely dissected,and the strata were finely divided and compared.A sequence stratigraphic framework of 6 sedimentary time units was established for 431 wells,and deltas in the study area were established according to the characteristics of different sedimentary microfacies.16 types of logging microfacies models of frontal subfacies,including sedimentary microfacies such as underwater distributary channel,thin-bed sand between underwater distributaries,sheet sand,remote sand bar,etc.The planar microfacies characteristics of 6 sedimentary time units had been determined,to lay the foundation for further research on the characteristics of the reservoir.
作者
胡东旭
马世忠
张灵芝
赵红
宫新婷
李永春
Hu Dongxu;Ma Shizhong;Zhang Lingzhi;Zhao Hong;Gong Xinting;Li Yongchun(Northeast Petroleum University,Daqing 163000,China;The Fifth Oil Production Plant of Daqing Oilfield Co.,Ltd.,Daqing 163000,China)
出处
《能源与环保》
2021年第4期151-155,共5页
CHINA ENERGY AND ENVIRONMENTAL PROTECTION
关键词
沉积时间单元
沉积微相
测井微相模式
杏八区
sedimentary time unit
sedimentary microfacies
logging microfacies model
Xingba Area
