油藏物理学—相对渗透率 If uw and wo are constant K。S(S) (2) K。-S(S) Kw We can got Ko/Kw~Sw by relative permeability curve K-ae is b n Ko.=Ia-bSwIf μw and μo are constant 油藏物理学——相对渗透率 （2） ~ ~ ( ) w o w o w S S K K f ~ ( ) w o w o S S K K We can got Ko/Kw~Sw by relative permeability curve bSw w o ae K K ＝  a bSw K K w o ln  ln 