现代地质2018，Vol.32Issue(1)：173-182,10.DOI:10.19657/j.geoscience.1000-8527.2018.01.17
杏北油田低弯度分流河道储层构型及其控制的剩余油分布模式
Architecture Characteristics of Low Sinuosity Distributary Channel Reservoir and Its Controlling Factors on Residual Oil Distribution: A Case Study of Xingbei Oilfield, China
摘要
Abstract
Low-sinuosity distributary channel reservoir is an important reservoir type of Xingbei oilfield and it is of great significance to further study its reservoir architecture characteristics for the adjustment and potential tapping.Based on the data of cores,wire-line logs and production performance from close well-spacing block,the reservoir architecture of low sinuosity distributary channel in Xingbei oilfield was finely analyzed by using "hierarchy analysis and depositional pattern guidance" with two primary hierarchies which were the determination of amalgamated channels and overbank sandstone bodies and the contact relationships among solitary channels.The 3-D reservoir architecture model was then established.Based on the static data of sealed coring wells and water-cut well-logging interpretation results and the production performance data,the waterflooding features of different periods and distribution of remaining oil were analyzed.Subsequently,the distribution of remaining oil was verified by numerical reservoir simulation based on 3-D reservoir architecture model.Finally,the distribution of remaining oil controlled by the reservoir architecture was summarized and demonstrated as follows:within the channel,the remaining oil volumes are enriched in the top and edge of the channel,the lower areas controlled by mud or calcareous interbeds between individual channels and undeveloped areas just connecting with low-permeability overbank sands.Outside the channel,they are mainly in low-permeability overbank sands,end of the overbank sands and the isolated sandstone bodies with imperfect injection-production systems.关键词
低弯度分流河道/储层构型/密井网/三维构型模型/油藏数值模拟/剩余油分布模式Key words
low-sinuosity distributary channel/reservoir architecture/close well-spacing/3-D reservoir architecture model/numerical reservoir simulation/distribution of remaining oil分类
能源科技引用本文复制引用
李伟强,尹太举,赵伦,李峰,谢鹏飞,阳成,严少怀..杏北油田低弯度分流河道储层构型及其控制的剩余油分布模式[J].现代地质,2018,32(1):173-182,10.基金项目
国家自然科学基金项目(41172106,41072087) （41172106,41072087）
国家科技重大专项(2011ZX05010-002-005). （2011ZX05010-002-005）
