摘要
湖岸线位置的确定对于寻找优质储层非常重要。以鄂尔多斯盆地陇东地区延长组长9油层为例,在沉积环境标志分析的基础上,从地层厚度、砂体发育特征、砂地比、岩性及沉积构造、古生物特征、剖面结构、地球化学指标等多方面入手,明确了长9沉积时期的湖岸线位置。在此基础上,探讨了湖岸线对储集砂体发育的控制作用,以期为长9油层组进一步勘探开发提供有益的指导和理论依据。
It is very important to determine the position of lake shoreline to look for high quality reservoirs. Taking Chang 9 oil-bearing layer of Yanchang Formation in Longdong Area, Ordos Basin, as an example, based on signs of sediment facies analysis, the delta lake shoreline during the Chang 9 deposition period is determined through stratigraphic thickness, characteristics of sand, sand ratio, lithology and sedimentary structures, fossils, profile constitution, and geochemistry. The impact of lakeshore line on reservoir sand body is discussed, providing a useful guide and theory basis forfur ther exploration and development of Chang 9 oil-bearing layer.
作者
余威
罗安湘
王峰
邓秀芹
刘哲
刘鑫
YU Wei;LUO Anxiang;WANG Feng;DENG Xiuqin;LIU Zhe;LIU Xin(l.Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;Research Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi＂an 710021, China;Exploration Department, Changqing Oilfield Company, PetroChina, Xi＂an 710021, China)
出处
《断块油气田》
CAS
北大核心
2017年第6期766-770,共5页
Fault-Block Oil & Gas Field
基金
国家科技重大专项课题“鄂尔多斯盆地致密油富集规律与目标优选”(2016ZX05046-005)
关键词
沉积特征
湖岸线
长9油层
陇东地区
鄂尔多斯盆地
sedimentary characteristics
lakeshore line
Chang 9 oil-bearing layer, Longdong Area
Ordos Basin
作者简介
余威,男,1990年生,在读硕士研究生,主要研究方向为沉积学（含古地理学）.E-mail：575884911@qq.com.;通讯作者：王峰,男,1977年生,副教授,博士,主要从事储层沉积学方面的教学和研究工作.E-mail：wangfeng07@cdut.cn.
