Study On Time-lapse Seismic Simulation And Software Design

Time-lapse seismic has proved a effective tool for reservoir monitoring. But for its adaptability, it is rather necessary to study its feasibility before application. Tune-lapse simulation is one of most important ways to study feasibility, and it also valuable in practice. In the paper, establishment of model, time-lapse seismic simulation before and after stack is studied and the corresponding software are designed. Proved by the model data, the studied method can be applied to study the feasibility of time-lapse seismic.The software for model establishment not only can be applied for complex model with a good precision, but also can change the velocity in the special formation with a gradient. Seismic data after stack can be gained by simulation, and is added to some noise, then whether the difference of time-lapse seismic can be detected can be ensured. In the same way, seismic data before stack can be gain by simulation, and whether the difference of tune-lapse seismic can be detected can be ensured from a other hand.