1. Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing City,100029,China;
2. Research Institute of Geologic Science,Jiangsu Oilfield Branch of SINOPEC,Yangzhou City,Jiangsu Province,225012,China
Abstract：The main reason restricting the exploration in Huazhuangbei area of Gaoyou sag is structural uncertainty.For that reason,starting from studying the regional structural style,the paper creates the structural style of the studied area;analyzes the development mode of diabase in studied area and identification of E1f3 strata attitude through accurately calibrating the horizon of target with the aid of horizon integrative calibration technique;carries out fault identification and optimum composition by multiple methods(especially the identification of NE minor fault),and finally uses velocity-variable mapping technique to carry out time-to-depth conversion.Through abovementioned a set of fine seismic interpretation techniques we used,the structural determinacy has been improved in Huazhuangbei area,achieving better exploration effect.
