油藏物理学一油藏岩石的润湿性及油水分布 Essence of wettability When the interfacial tension attain balance o=0+09 g12 2 023-O13=O12C0S0=Ag23 3 012 A-wet tension means specific surface energy reduce because of water-wet.油藏物理学——油藏岩石的润湿性及油水分布 Essence of wettability When the interfacial tension attain balance  23   12  13  23 13 12 cos  A Ａ—— wet tension means specific surface energy reduce because of water-wet