fine porosity

基本解释

The resulting reservoirs are primarily of secondary porosity with fine throats and very low permeability.
形成了小容量特低渗透性细喉道以次生孔隙为主的双孔隙度储集层。
The main lithology is clay, sub-clay, fine sand, fine porosity, the mineral components of rich fluoride provides an abundance of matter resources.
岩性主要为黏土、亚黏土、细砂，孔隙小，富含氟的矿物成分为地下水中高氟提供了丰富的物质来源。
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Experiments led to the conclusions: ·that sandstone has high permeability because it has high porosity, good gradation and fine psephicity of grains, and perfect connectivity between inner pores.
实验发现，由于砂岩的孔隙率大，矿物颗粒的分选度和磨圆度较好，颗粒间孔隙的连通性很好，其渗透率最高；