The inner layer heterogeneity, interlayer heterogeneity and areal heterogeneity are severe and the thickness of intercalations are great and its expanded range are wide that can hold up fluid well.

• 层内、层间、平面非均质性均较强；研究区隔夹层厚度较大，横向延伸范围较广，具有阻隔流体的能力。