Total porosity is the ratio of the total void space in the rock to the bulk volume of the rock; effective porosity is the ratio of the interconnected void space in the rock to the bulk volume of the rock, each expressed in percent.

• 总孔隙度是岩石中孔隙的总体积与岩石总体积的比值。有效孔隙度是互相连接的孔隙印体积与岩石总体积的比值。两者都以百分率表示。