岩石的渗透率与孔隙喉道大小及其分布有着直接的关系，而孔隙喉道大小及分布可由毛管压力曲线来确定。
Permeability of rocks has direct relations with the size and distribution of pore throat, which is determined through the capillary pressure curve.
研究区砂岩储层的孔隙分布较为集中，储集层非均质性主要由喉道非均质性引起。
The pore distribution of the sandstone reservoir is comparatively centralized. The reservoir inhomogeneity is mainly caused by the throat inhomogeneity.
低渗透油藏的主要特点是储层孔隙小、喉道细、渗流阻力大，油井产油能力和吸水能力都非常低。
Low permeable reservoir is mainly featured by small reservoir pore, fine throat, high filtration resistance, low oil productivity and low water absorbing capacity.
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