The petrophysical lower limit values of an effective reservoir includes porosity, permeability and oil saturation.

有效储层的物性下限位主要包括储层孔隙度、渗透率和含油饱和度下限值。

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It is found that the oil effective permeability of low middle porous sandstone is related with the porosity, water saturation and shale volume of formation.

研究发现，油的有效渗透率与中低孔隙性储层的孔隙度、含水饱和度及泥质含量有关。

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Initial oil saturation is controlled by the reservoir boundary and structural. Parts of the reservoir with high initial water saturation dose not form effective edge and bottom water drive.

含油饱和度受油藏边界和构造形态控制，油藏南部边缘和局部构造低部位原始含水饱和度高，但不形成有效边底水驱动。

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