Abstract: To accurately identify the details of reef and other complex structures, this paper proposes a new seismic structural interpretation method based on wave-equation numerical simulation, by which the seismic numerical simulation based on one-way wave-equation in F-K domain can be made. Comparing the modeling records with practical seismic records before and after seismic migration, the original geological model of seismic structural interpretation can be successively modified. By using one-way wave-field extrapolation operators, the method not only has high computational efficiency, but also can obtain high S/N records, which is very important for the contrast of wave-field characteri stics. Moreover, adequately employing the practical records before and after seismic migration in this method, the multiple solutions of seismic structural interpretation can be effectively reduced, and thus obtaining the fine structural interpretation model.

Key words: seismic interpretation, forward modeling, numerical simulation, wave equation