正确认识注水后储层物性的变化规律对油田开发方案的制定和调整有着重要的意义。文中对冀东高尚堡油田沙三段2+3 亚段（Es₃²⁺³）储层特征展开研究，通过对重点井样品注水前后孔隙结构、储层物性、储层非均质性的分析对比，指出注水后储层物性普遍变好，但本身物性较好的储层物性改善程度更高。这一特征也导致了注水后研究区储层非均质性更为严重，一般注水后储层非均质性由中等非均质性上升至强非均质性。针对注水前后储层物性的变化规律，提出了初步的开发建议。

It is significant to cognize the variation rule of reservoir property correctly for formulating and adjusting development policy. The reservoir features of the Es3 2+3 in Gaoshangpu Oilfield of Jidong are studied. The pore structures, reservoir properties and heterogeneity ofmain wells before and after water injection are compared. It is pointed out that the reservoir properties become better after injection, and the reservoirs with preferable properties are improved more. But it also causes more serious heterogeneity in the study area. In viewof this variation rule of the reservoir features, the idea for development is proposed.