于欢
YU Huan

• 1:大庆油田有限责任公司第三采油厂

摘要(Abstract)：

以大庆萨北开发区PⅠ3沉积单元为研究对象,纵向上识别出2个超短期旋回层序,平面上划分出心滩坝和辫状河道,并精细描绘出内部夹层分布特征为水平产状、分布稳定性差,仅在小范围内零星分布,多呈孤立的土豆状或窄条带状。辫状河储层平面及层内非均质性中等。在后续水驱开发阶段,剩余油平面上主要存在于微构造高部位、注采不完善部位、辫状河道边部,纵向上主要存在于油层顶部、夹层遮挡部位。研究成果对一类油层聚驱后挖潜具有指导意义。
Taking Sedimentary Unit P Ⅰ 3 in Daqing Sabei Development Zone as the researching object,two super short-term cyclic sequences have been recognized vertically,the planar channel bars and braided channels are divided,and moreover the inside interlayer distribution characteristics are finely described as follows:horizontal occurrences and poorer distribution stability,these bars and channels are only distributed in a small range,which are isolated-potato shapes or narrow strips.The planar and interlayer heterogeneities of the braided-river reservoirs are medium.In the stage of the consequent waterflooding,the planar remained oil is mainly enriched in the high parts of the micro-structures,injection-production imperfect parts,edges of the braided channels;the longitudinally remained oil mainly exists on the top of the oil layers and interlayer shielded parts.The achievements possess a certain guiding significances for the later potential tapping of the first-class oil reservoirs after the polymer flooding.

关键词(KeyWords)： 辫状河;心滩坝;构型;夹层;剩余油
braided river;channel/mid-channel bar;configuration;interlayer;remained oil

Abstract:

Keywords:

基金项目(Foundation): 国家“十二五”重大专项(2011ZX05052003)

作者(Author): 于欢
YU Huan

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