The pore geometry is poor and the reservoir belongs to the low porosity low permeable reservoir.

孔隙结构普遍较差，整体属于低孔低渗储层。

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Research results indicate that the pore geometry of the rock and soil shows the fractal behavior over the range from atom scale to grain size.

大量的研究表明，岩土介质的孔隙几何从原子尺度到晶粒尺寸范围内均表现出分形特征。

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Fabricating the nanoporous silicon membrane with nanotechnology and Bio-MEMS technology, the thickness of membrane, pore size and distribution, geometry shape and porosity can precisely controlled.

采用纳米技术和生物微电子机械系统技术制备纳米多孔硅膜，可准确控制膜的厚度、几何形状、孔大小、孔分布和孔隙率。

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