An amendment should decrease bulk density, increase total porosity, and increase water and air content. 改良剂能降低堆积密度,增加总孔隙度,增加水和空气的含量。
In dealing with reservoir rocks, it is necessary, because the cementing materials may seal off a part of the pore volume , to define total porosity and effective porosity. 在研究储层岩石时,因为胶结物会堵住一部分孔隙的体积,所以对于油藏流体有必要定义总孔隙度和有效孔隙度。