Abstract：Niuju Area is located in the north of the East Depression,Liaohe Basin,thin inter-bedded sands and shales are main sedimentary characteristics of reservoirs,and the thickness of a single bed is mostly less than 5 meters.Therefore,high-resolution impedance inversion is needed.Firstly,we carry out qualitative and quantitative prediction of thin beds based on reservoir calibration and forward modeling.Then,with multi-attribute compari-son we select maximum trough amplitude attribute that can effectively show the distribution characteristics of sand bodies.Afterwards,reservoirs are predicted with the high-resolution impedance inversion provided by GeoEast.Finally,the sand thickness prediction is achieved with the threshold value method.Our prediction has a coincidence rate of 78.6%,which is very helpful for the improvement of exploration drilling success rate.
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