After entering the especially high water-cut stage, forecast of remaining oil and top potential of oilfield, to a large extent, depend on study accuracy and cognition degree of subsurface reservoirs. Fine study of the sedimentary microfacies of single sand-body is important foundation of oilfield development and adjustment. Analyzing results, by means of 6 important sedimentary time unit of Pu I 3 ( P I 3 ) sublayer of Putaohua oil-bearing layer in Xing Twelve Area of Daqing Oilfield, 138 development wells' logging data. Individual well all sedimentary time units are subdivided single sand-body, and then fine correlation are taken. On these base of , logging microfacies model is established, and 6 sedimentary time units' plane sedimentary microfacies and single sand-body' s space distribution are confirmed.%油田在进入特高含水开采阶段以后,剩余油的预测及挖潜在很大程度上取决于对地下油藏的研究精度和认识程度.对沉积微相进行单砂体级精细研究是油田开发调整的重要基础.通过大庆油田杏十二区葡萄花油层组葡Ⅰ3(PⅠ3)小层6个重点沉积时间单元138口开发井的测井资料分析,将各井沉积时间单元细分至单砂体级并精细统层对比.在此基础上建立测井微相模式,确定6个沉积时间单元平面沉积微相及单砂体空间分布.
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