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大庆油田某井区储集层流动单元采用聚类分析法可划分为E、G和P共3种类型。E类主要对应河道主体带与河口坝砂体,属高孔高渗型储层,综合评分65左右;G类主要对应决口扇与分流间席状砂体,属高孔中渗型储层,综合评分38左右;P类绝大部分对应分流间席状砂体,属中孔低渗型储层,综合评分10左右。3类流动单元的挖潜方向:E类箱型或钟型砂体的顶部易形成剩余油富集区;G类和P类作为二类储层,是下一步挖潜的有利区域。
The reservoir flow units in a well area of Daqing Oilfield can be divided into three types of E, G and P by cluster analysis. Class E mainly corresponds to the main channel of the river course and the estuary bar sand body, which belongs to the high-porosity and high-permeability reservoir with a comprehensive evaluation score of about 65. The G class mainly corresponds to the sand bodies of the split mouth and shunt, A comprehensive score of about 38; P most of the corresponding shunt between the sand body, is a low permeability reservoir, comprehensive score of 10 or so. The direction of tapping potential of the three types of flow cells: the top of the E-type box or bell-shaped sand body tends to form the remaining oil-rich area; G and P as the second type of reservoirs are the favorable areas for potential tapping in the next step.