In this paper,the channel sand body of Fuyu oil reservoir in Y5 well area of Zhaoyuan area in northern Songliao Basin was chosen as the research object.In view of the phenomena that the sand body thickness is thin,the lateral change is prominent,and the seismic response characteristics of the sand body of the same thickness are inconsistent,the authors adopted the time-frequency analysis technique based on the simulation analysis of the seismic response characteristics of the target sand body.The generalized S transform was used to optimize the sensitive frequency of different thicknesses and combined sand bodies in the frequency domain,and the data were reconstructed based on the sensitive frequency to eliminate the sand.The body and the seismic profile characteristics were inconsistent,and it was better to predict the sand body distribution by seismic attributes.The research results show that using the sensitive frequency to reconstruct the seismic attributes extracted by the data body can effectively improve the prediction accuracy of the thin-layer channel sand body and greatly reduce the risk of oilfield exploration and development.
安鹏, 于志龙, 刘专, 马云海, 李丽, 刘凤轩. 敏感频率地震属性在薄层砂体预测中的应用——以松辽盆地肇源地区为例[J]. 物探与化探, 2020, 44(2): 321-328.
Peng AN, Zhi-Long YU, Zhuan LIU, Yun-Hai MA, Li LI, Feng-Xuan LIU. The application of sensitive frequency seismic attributes to thin sand body prediction:Exemplified by Zhaoyuan area in Songliao Basin. Geophysical and Geochemical Exploration, 2020, 44(2): 321-328.
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