西北地质Issue(4)：10-19,10.
柴达木盆地西部跃进二号油田早渐新世沉积相研究
Research on Early-Oligocene Sedimentary Facies of YuejinⅡ Oilfield in Qaidam Basin
摘要
Abstract
The micro-facies are uncertain and their distribution characteristics are not fine,which exists in the sedimentary study of YuejinⅡ oilfield that locatedatthe west part of Qaidam Basin. And such problems restrict the fine development at the high water-cut stage.So based on the basic principle of sedimentology,the delta plain,braid-river delta front,shore-shallow lake sedimenta-ry background in early-Oligocene have been elaborated by synthesizing geological facies identifica-tion (e.g. petrology marks and sedimentary tectonics marks)and logging facies analysis (e.g. and SP curve character).Such sedimentary sub-faciesare divided into ten micro-facies,such as water distributary channel and flood plain,underwater distributary channel,mouth bar,distal bar,sheet sand,distributary bay,sand bar,sand beach,shore-shallow lake of mud. From the bottom to top vertically,the strata have a complete retrograding sequences,including braided riv-er delta plain,braided river delta,shore-shallow lake. Combination of vertical and plane distri-bution of sedimentary micro-facies,there are two types of the reservoir sedimentation models, namely,the model of the braided river delta and lake in the target zone.关键词
沉积相/早渐新世/跃进二号油田/柴达木盆地Key words
sedimentary facies/Early-Oligocene/YuejinⅡ oilfield/Qaidam Basin分类
能源科技引用本文复制引用
于跃,牟中海,杨雪峰,漆麟,陈袁,苏秋..柴达木盆地西部跃进二号油田早渐新世沉积相研究[J].西北地质,2015,(4):10-19,10.基金项目
中国石油天然气股份有限公司重大科技专项“柴达木盆地建设千万吨油气田综合配套技术研究”课题06“柴达木盆地老区稳产提高采收率技术研究”(2011E-0306) （2011E-0306）
