梁家楼油田沙三段中亚段剩余油分布规律  

Distribution rule of remaining oil in middle Es_3 of Liangjialou oilfield

作　　者：宋桂茹[1] 李道轩[1] 王东锋[1] 

机构地区：[1]胜利油田有限公司纯梁采油厂

出　　处：《油气地质与采收率》2003年第3期48-49,共2页Petroleum Geology and Recovery Efficiency

摘　　要：梁家楼油田经过近2 0年的滚动勘探开发,已进入特高含水开发阶段,但层内、平面剩余油潜力大,剩余可采储量高达5 0 3×10 4 t。在重建三维非均质地质模型的基础上,深入研究了剩余油分布规律。受储层非均质性和流体重力分异作用的影响,微构造高点、II、III类储层、BC类流动单元的油层顶部相对水淹程度轻,剩余油富集,采用不稳定注水、水平井、堵水复射技术等方法挖掘剩余油潜力,提高采收率3 .3 %。After nearly 20 years' rolling exploration and production, Liangjialou oilfield has been in extra high watercut period, but even has high potential in layers and plane with recoverable reserves as large as 503×10 4 t. Based on rebuilding 3dimension heterogeneous geological model, the distribution rule of the remaining oil is studied deeply. Under the effect of reservoir heterogeneity and fluid gravity segregation, relative wateredout degree is slight and the residual oil is enriched at the high points of the microtectonics, top of II, III reservoirs and BC flowing units. The recovery efficiency has been enhanced by 3.3% after tapping the potential of the remaining oil by the method of unstable water injection, horizontal wells, water plugging and combined perforation.

关 键 词：梁家楼油田 剩余油 分布规律 含水饱和度 堵水复射 流动单元 采收率 水平井 不稳定注水 

分 类 号：TE327[石油与天然气工程—油气田开发工程]