宏观非均质性较强，层内纵向上渗透率差异明显，渗透率非均质参数值较大；
Reservoir macroheterogeneity is also high. Its internal longitudinal permeability has obvious differences and the value of permeability heterogeneity parameters is greater.
砾岩油藏驱油效率主要受储层微观孔隙结构特征、储层宏观非均质性特征、原油粘度和注水政策的影响。
The Results shows that the oil displacement efficiency is mainly affected by pore structure, macro heterogeneity, oil viscosity and technology policy of water flooding.
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