摘要
反韵律油层存在夹层,使层内水驱渗流更加复杂,剩余油的赋存位置和形态发生变化,对厚油层的开发具有重要的影响。基于可视化物理模拟实验,综合考虑夹层在反韵律厚油层内的分布位置、夹层大小,对剩余油在反韵律厚油层中的赋存规律进行直接观察。基于数值模拟方法,建立不同夹层模型,模拟研究了夹层在不同平面位置、纵向位置、展布面积、油水井射孔组合对剩余油的赋存位置及赋存形态的影响。研究结果表明:反韵律厚油层由于夹层的存在,导致剩余油的赋存程度增大,剩余油主要分布在夹层的下方,并系统的总结出了夹层控制剩余油的5种分布模式,分别为:楔状型、碗状型、平板状型、半碗状型、M状型,为该类油层存在夹层时的剩余油挖潜提供方向,对油田的中后期开发具有重要意义。
Thick reverse rhythm reservoir in the process of water flooding,as a result of the existence of interlayer,the law of thick oil reservoir water drive and the remaining oil's occurrence location and shape change,these changes have important influence for the development of heavy oil reservoir. Based on visual physical simulation experiment,considering interlayer in thick reverse rhythm reservoir in the distribution of position,and the size of the interlayer,the remaining oil in the thick reverse rhythm reservoir in the occurrence regularity of direct observation. Based on numerical simulation method,different interlayer model,simulation studies the interlining in different plane position,vertical position,combination of residual oil distribution area,oil and water Wells perforation of occurrence location and the influence of geometrical shape. Summed up a interlayer system controls the remaining oil distribution pattern of 5 were: wedge type,bowl type,flat-shaped type,half of the bowl-type,M type. These types of models exist for the interlayer when the oil tap the potential of remaining oil to provide direction and development of oil fields is important in the post.
出处
《内蒙古石油化工》
CAS
2014年第5期124-128,共5页
Inner Mongolia Petrochemical Industry
关键词
反韵律厚油层
夹层
剩余油
物理模拟
Reverse rhythm thick reservoir
Interlayer
Remaining oil
Physical simulation experiment
