Abstract：There is wide application for seismic attributes in hydrocarbon detection, reservoir prediction and sequence-stratigraphic interpretation. On the basis of fine interpretation of 3-D wide-azimuth seismic data, based on analysis of seismic amplitude attribute, seismic coherent analysis and detection of energy spectrum and phase spectrum under the spectrum decomposition and in combination with sedimentary facies and single-well facies in the region, the paper studied Jurassic Sangonghe Stage Second Segment sandstone in Moxizhuang area of Junggar basin and clarified major feature of sedimentary micro-facies, which showed that the method is able to better predict sedimentary feature of strata and distributing rule of sand body.
