针对南堡凹陷2号潜山裂缝-孔隙型双重介质碳酸盐岩油藏剩余油分布复杂、开发效果不理想的现状,依据水平井与油水界面的位置关系、不同区域水平井生产特征的差异性,开展剩余油分布规律研究,并提出针对性治理对策.研究结果表明:南堡2号潜山可划分为块状底水区、层状边水区、物性差区和气顶区,剩余油赋存类型分为阁楼型、底水锥进型、边水窜进型和不连通孔缝型,可分别采用注气降油水界面、关井压锥、注水压锥、注氮气驱、气水交替驱和储层改造等措施治理剩余油.研究结果对同类油藏综合治理方案的制订有一定借鉴意义.%The development of fracture-pore dual-media carbonate oil reservoir in No.2 buried-hill of Nanpu Oil-field is limited by complex remaining oil distribution and unsatisfactory performance.The remaining oil distribution patterns are analyzed and the corresponding countermeasures are proposed according to the configuration between horizontal well and oil-water interface and the difference of horizontal-well production performance in different are-as.Research demonstrates that the No.2 buried-hill in Nanpu Oilfield ean divided into block area with bottom-aquifer,layered area with edge-aquifer,low-quality area and gas-cap area.The remaining oil distributions include attic pattern,botton-aquifer coning pattern,edge-aquifer channeling pattern and fracture-pore pattern without connection.The following countermeasures can be respectively implemented to recovery the remaining oil,including gas injection,shut-in to control aquifer coning,water injection to control aquifer coning,nitrogen flooding,gaswater alternation flooding and reservoir stimulation.This research could provide certain reference for the comprehensive management in similar oil reservoirs.
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