本文分析了油层水淹前后碳酸盐含量及分布,并就注入水与水淹油层采出水的钙镁离子的含量、悬浮颗粒粒径及数量作了对比。油层水淹后,岩石中的钙没有被水溶解并带走,相反岩石中固体颗粒还有所增加,这对油层渗透性将发生不利影响。本文还分析了大量检查井岩心物性资料,结论是水淹油层岩石物性从总体上看没有发生明显变化。 In this paper, the content and distribution of carbonate before and after flooding are analyzed, and the content of calcium and magnesium ions, the particle size and the number of suspended particles in the water flooded reservoir are analyzed. After the reservoir is flooded, the calcium in the rock is not dissolved and taken away by the water. On the contrary, the solid particles in the rock also increase, which will adversely affect the permeability of the reservoir. The paper also analyzes a large number of core material properties of inspection wells and concludes that the petrophysical properties of the flooded reservoir did not change significantly on the whole.