Abstract: The oil migration experiment was made in water-saturated and glass bead-filled glass plate model injected with dye kerosene in order to observe the preferable pathway of kerosene migration and its change in episodic oil-packed process. The results show that after formation of the preferable pathway, the oil remigration always follows after the original pathway and the pattern and configuration of mi-gration normally keep the way; at the same injected rate, the frontal average rate of oil remigration is faster than that of primary migration,and the remigration rate assumes direct correlation to the injected rate; the post-remigration pathway becomes narrow and shrink, oil satu-ration declines, but the original oil migration pathway recurs from the remained oil traces.

Key words: petroleum migration, secondary migration, episodic migration, pathway, physical model, experiment