红柳泉地区E31储层沉积体系演化特征及沉积模式

Evolution Characteristics and Sedimentary Model of E31 Reservoir Sedimentary System in Hongliuquan Region

通过对红柳泉地区E13储层岩心、地震资料解释、有利区E13储层段实施多井约束地震反演处理,揭示出E13储层段为红柳泉地区自下而上经历了三角洲平原、三角洲前缘、滨湖—浅湖—半深湖沉积亚相,并进一步细分为河道砂、点砂坝、河口坝和沿岸滩坝等沉积微相。指出E13储层段河道砂、点砂坝、河口坝砂体为最有利的砂体,且具有一定的工业油流,是下一步滚动开发的主要目标。

Through the analysis on E1/3 reservoir core in Hongliuquan region and earthquake data, and multi -well constrained seismic inversion of E1/3 reservoir in favorable area, this paper indicates that, through a revolution of Hongliuquan region from bottom to top, E1/3 reservoir develops from deltic plain, deltic front to sedimentary sub - fa- cies of seashore lake - shallow lake - faily deep lake. Furthermore, it is sub - divided into some sedimentary micro- facies such as channel sand, point bars, river mouth bars and costal beach bars. Finally, this paper puts forward that, the channel sand, point bars and river mouth bars of E1/3 reservoir are the most favorable bars with some com- mercial oil flow which will be a main objective for next rolling development.