这个孔隙空间被称为孔隙度，用岩石总体积的百分比表示。
This pore space is known as porosity and is expressed as a percentage of the total rock volume.
而碳酸盐的溶解作用形成了大量次生孔隙空间，增加了砂岩的孔隙度。
The porosity increasing is primarily due to the resolution of carbonate so that a large amount of the secondary pore space is resulted.
由于孔隙空间存在着气体，同一地层的中子孔隙度测井和密度孔隙度读数不同。
Different porosity reading on the neutron porosity log for the same formation due to gas in the pore space.
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