Abstract: In superimposed basins,such as hinterland of Junggar Basin,the formerly accumulated subtle reservoirs usually have undergone adjustment due to the stack of multiple-stage tectonic movements,generation and accumulation.Studying mainly control factors of adjustment for formerly accumulated reservoirs and understanding their re-distribution rules,which are a primary guaranty of petroleum exploration.2-D physical model experiment ideally recurred adjustment process and result of variously adjusted subtle oil-gas reservoirs.The following results have been obtained:1) Due to reservoirs adjustment,the oil saturation of reservoir depressed obviously for its fine physical property.Some reservoirs turned into water layers indeed;while,the oil saturation of the one for bad physical property depressed less.The characteristic of different remain or different migration has been presented;2) The complexion of formation and distribution of concordant and converse adjusted reservoirs exists some difference;3) The adjusted reservoirs are dispersed and small-area distribution,and their trap types are mainly stratigraphic and lithologic traps instead of structural traps.