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枣园油田孔二段储层为湖底扇和滩坝沉积砂体 .针对该区储层沉积特点 ,选择反映储层宏观和微观特征的储能丰度、渗透率、变异因数、粒度中值和平均喉道半径 5个参数 ,建立了储层评价标准 ,采用模糊理论分析方法 ,以小层为单元进行了储层综合评价 .根据综合评价值 ,将本区孔二段储层分为 4类 ,Ⅰ类储层占小层数 13 % ,Ⅱ类储层占小层数5 0 % ,Ⅰ ,Ⅱ类储层分布区为有利储层发育区 .储层分布与沉积微相密切相关 ,Ⅰ ,Ⅱ类储层分布在浊积水道和滩坝砂体中 .
The reservoir in the second member of Zaoyuan oilfield is sublacustrine fan and beach bar sedimentary sand body.According to the sedimentary characteristics of the reservoir, the reservoir energy abundance, permeability, variation factor, median of particle size The average throat radius of five parameters, the establishment of reservoir evaluation criteria, the use of fuzzy theory analysis method, a small reservoir as a unit of reservoir evaluation.According to the comprehensive evaluation of the value of the second reservoir will be divided into four categories , Type I reservoirs accounted for 13% of the small number of layers, type II reservoirs accounted for 50% of the total number of small formations, and type I and II reservoirs were favorable reservoir development zones. Type Ⅱ reservoirs are distributed in turbid water channels and beach bar sand bodies.