关键词: 逆断层, 下盘, 构造, 地震数据处理, 时—深转换, 深度偏移, 地球物理模型, 速度校正

Abstract: Using time depth conversion and depth migration technologies for data processing,more proper struc-tural imaging profiles in steep structure were obtained.The author analyzed the fold and transformation of structure inlower block of Huoyanshan fault in terms of shaping mechanism,and developed a geophysical model. Based on these,the reflected impedance on steep fault was determined, detailed seismic interpretation was made, and then mapped outafter velocity corrections.