油藏物理学一油藏岩石的毛管压力曲线 The curved surface of capillary maybe part of sphericity,cylinder or random shape. 1.If the curved surface is sphericity R=R2=R 20 P R r R 三 cos? 2ocose P油藏物理学——油藏岩石的毛管压力曲线 The curved surface of capillary maybe part of sphericity, cylinder or random shape. 1. If the curved surface is sphericity r P r R R P R R R c c     2 cos cos 2 1 2     