西安石油大学：《油藏物理（油层物理学）Petro-physics》精品课程教学资源（英文课件）Flow 3.2 Capillary pressure curve 油藏岩石的毛管压力曲线

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     

油藏物理学一油藏岩石的毛管压力曲线 2.If the curved surface is cylinder R1=0,R2=r P=G 3.the capillary pressure of random surface horizontal:R2 vertical:R

油藏物理学——油藏岩石的毛管压力曲线 2. If the curved surface is cylinder r P R R r c   1  , 2  3. the capillary pressure of random surface horizontal: R2 vertical: R1