The minimal value of porosity is around 2.5% though throat radius method and porosity-water saturation method.

运用喉道半径法、孔隙度-含水饱和度法求得孔隙度下限值为2.5%。

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There are currently two main chemical conversion methods for reducing benzene content - the hydrogenation saturation method and the alkylation method.

目前，化学转化法降苯技术主要有加氢饱和降苯和烷基化降苯两种。

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The formation test method and irreducible water saturation method are two new methods used to determine the low limits of effective reservoir physical properties.

试油法和束缚水饱和度法是确定有效储层物性下限的两种新方法。

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