The migration nature of fluid and post-reformation of petroliferous basins resulted in multi-period of migration
accumulation
pool-forming and destruction of oil and gas in geological history.On the basis of the researches made on fluid dynamics in Junggar and Ordos Basins
three major characteristics of fluid dynamics of reformed basins were summaried:1.plannar fluid dynamic field could usually be divided into several relatively independent systems;2.the distribution and evolution of fluid dynamics could be divided into different stages in geological history;3.the distribution patterns of fluid dynamics of different strata were not always coincided in space.