And then, underground coal porositycalculation method and variational characteristic of coal effective pore volume compressibility are discussed. 進(jìn)而探討了煤巖地下孔隙度的計算方法和煤巖有效孔隙體積壓縮系數的變化特征。
From the reservoir-engineering standpoint, effective porosity is the quantitative value desired, as this represents the space that is occupied by mobile fluids. 由于有效孔隙度表示了可流動(dòng)流體所占有的空間，因此從油藏工程的觀(guān)點(diǎn)來(lái)看，有效孔隙度是所需要的定量值。
