摘要
密井网条件下,结合岩心和丰富的测井资料,应用“旋回对比,分级控制”的统层对比方法,精确刻画萨中油田中区西部萨Ⅱ2a时间单元的平面沉积微相,并对点坝砂体的空间结构进行解剖,建立了研究区点坝识别方法;根据储层建筑结构的参数提取方法,对萨Ⅱ2a时间单元进行点坝参数提取,其中夹层倾角4.5～8.9°,平均6.7°,平面间隔4.8～9.5 m.建立了点坝构型模式,对老油田提高三次采油效果以及剩余油挖潜具有指导意义.
Under the dense well pattern, comprehensively using the data of cores and logs and the method of ＂cycle correlation, controlling on a level by level basis＂, this paper accurately characterized the plane sedimentary microfacies of SaⅡ2a time unit in the west Sazhong Oilfield and built the identification method of point bar. According to the parameter extraction method of reservoir architecture, the point bar parameters of SaⅡ2a time unit were extracted. Among them, the interlayer inclination angle was 4.5-8.9° with an average of 6.7° and the interval was 4.8-9.5 m. At last, the model of point bar was established, which has guiding significance to improve the effects of EOR and potential tapping of remaining oil in the mature oilfield.
出处
《断块油气田》
CAS
2014年第3期305-308,共4页
Fault-Block Oil & Gas Field
关键词
密井网
点坝识别
建筑结构
剩余油
萨中油田
dense well pattern point bar identification architecture remaining oil Sazhong Oilfield
