摘要
根据萨中开发区相对渗透率曲线,给出萨中开发区相对渗透率曲线的特征,包括曲线形态、两相跨度以及等渗点含水饱和度;根据相对渗透率曲线,建立剩余油潜力评价模型,并结合萨中开发区实际数据,对剩余油潜力与各类油层的动用状况进行评价.结果表明:萨中开发区相渗曲线以水相上凹型和水相直线型为主,分别占总数的45.2%和40.5%;三类油层的剩余油潜力最高,主力油层的最低,二类油层的介于二者之间.应采取相应的挖潜措施对非主力油层进行开采.
Based on the analysis of the relative permeability curves in Sa-zhong area,the characteristics of these curves have been given in this paper,it includes the conformation of curves,the interval of water saturation between which oil and water can both flow,water saturation at isopotal point.According to the potential remaining oil evaluation model based on the relative permeability curves and filed data,the potential remaining oil and utilization degree of oil layer have been evaluated.The result shows that most of the relative permeability curves in Sa-zhong area belong to two types,the water relative permeability curves are concave up or straight line whose percentage is 45.2% and 40.5% each.The amount of remaining oil in class-3 oil layer are highest,remaining oil in main layer are lowest,and oil in class 2 is just between them,so necessary steps should be taken to recover the oil in the sub-main oil layers.
出处
《大庆石油学院学报》
CAS
北大核心
2009年第2期48-52,共5页
Journal of Daqing Petroleum Institute
基金
国家自然科学基金重点项目(50634020)
黑龙江省杰出青年科学基金项目(200601)
关键词
相对渗透率曲线
剩余油潜力
动用状况
油藏评价模型
萨中开发区
relative permeability curves
potential remaining oil
utilization degree
reservoir evaluation model
Sa-zhong area
