In an effort to determine approximate limits of porosity values, Slichter and, Later, Graton and Fraser computed the porosity of various packing arrangements of uniform spheres.
为了求得孔隙度的近似界限，斯里西特以及后来的哥拉登和费雷塞计算了均一球粒在不同堆积形式下的孔隙度。
As it is applied, the porosity value computed by the grey relationship method is more approximate to the actual value, which has improved the resolution of thin oil reservoir.
实际应用表明，用灰色关联计算法求得的孔隙度值更接近实际值，并且提高了储层的分辨率。
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