| Taking Fuyang oil bed in Zhou201 block as an example,applying three technology means of high resolution sequence stratigraphy,sedimentary microfacies research and reservoir bed heterogeneity research , this thesis mainly pricks into the property ,the heterogeneity of fluvial facies and the distribution rule of bearing oil.Fuyang oil bed in Zhou201 block is a low permibility reservoir bed. In order to make sure the oil-bearing characteristic of the reservoir bed, this thesis makes a high resolution sequence stratigraphy research on this block and studies divided microlayer in terms of refine sedimentary microfacies.The division of sedimentary microfacies of this block indicates that the reservoir bed mainly consists of channel facies. In order to resolve the problem that the data of reservoir bed property is too little to make the study of property and heterogeneity of reservoir bed,the study establishes the corresponding relationship of porosity and density, then makes fit of the abundant porosity data which is worked out with acoustic travel time and gamma ray log,finally figures out property parameters and heterogeneity parameters of reservoir bed according to the formula, and then fixes the porosity lower limit of oil-bearing reservoir bed which is 6% as well as upper limit of heterogeneity parameters through analyzing the relationship of oil-bearing characteristic and property and heterogeneity of reservoir bed, and then verifies the master-control factors of reservoir forming in this block,which are: abnormal pressure, fault and sand body by means of analyzing the matching relationship of source,reservoir,cap rock,trap,migration,preservation.On the basis of above-mentioned researches,this thesis draws the conclusion, which is that, on the premise of source-rock development,the sand body joining with larger fault whose parameters are between porosity lower limit and heterogeneity upper limit is optimum target zone.
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