基于压汞法的成庄井田3号煤孔隙特征研究
China Energy and Environmental Protection(2019)
Abstract
煤孔隙特征是煤储层物性特征的关键参数之一,控制着煤层气赋存、运移和煤层气开发效果.采用压汞法对成庄井田3号煤孔隙进行了深入和系统研究,结果表明:成庄井田3号煤孔隙形态基本一致,以一端封闭的不透气性孔隙为主;煤中过渡孔和微孔最为发育且所占比例较高,煤总孔隙面积和比表面积较大;煤中有效孔隙不甚发育,煤的孔隙度较低;孔隙大小对孔容控制显著,孔隙越大煤的孔容越大,反之亦然.
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