摘要
为研究复杂断块油藏特高含水期剩余油控制机制,指导该类油藏剩余油的高效挖潜,文中利用三维物理模型研究了地质及开发因素对剩余油的控制机制和影响程度。结果表明:断层遮挡是该类油藏高部位剩余油的主控因素,对应于矿场上的屋脊一线及断层夹角剩余油;储层非均质性严重影响剩余油的分布状态,造成平面剩余油分布不均衡;开发中的井网形式也是造成最终剩余油富集的因素。针对不同类型的剩余油提出了对应的动用措施,研究结果对现场的开发有一定指导意义。
In order to study the control mechanism of remaining oil at high water-cut stage for complex fault-block reservoirs and guide the effective exploration of this kind of reservoir,a 3D physical model is used to study the control mechanism and the impact made by the geological and development factors of complex fault block reservoirs at high water-cut stage.The result shows that fault screening is the main controlling factor for remaining oil of this kind of reservoir,corresponding to the remaining oil at the ridge of the reservoir and the corner of the fault site;the reservoir heterogeneity greatly affects the distribution of remaining oil and causes the uneven distribution of remaining oil;the well pattern is also a factor for accumulation of remaining oil.With experiments,the control mechanism of remaining oil for fault-block reservoirs was figured out and the corresponding measures for different kinds of remaining oil were proposed,which has great guiding significance for development on site.
作者
吴义志
WU Yizhi(Research Institute of Exploration and Development,Shengli Oilfield Company,SINOPEC,Dongying 257O15,China)
出处
《断块油气田》
CAS
北大核心
2018年第5期604-607,共4页
Fault-Block Oil & Gas Field
基金
国家科技重大专项课题"复杂断块油田提高采收率技术"(2016ZX05011-002)
关键词
复杂断块油藏
剩余油控制机制
三维物理模型
压降分布
complex fault-block reservoir
control mechanism of remaining oil
3D physical model
distribution of pressure drop
