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Initial Wave Impedance Modeling Method Based on Plane-Wave Destruction
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 82nd EAGE Annual Conference & Exhibition, Oct 2021, Volume 2021, p.1 - 5
Abstract
Initial model is critical to the model-based wave impedance inversion method, and its accuracy directly influences the convergence speed of inversion and the accuracy of inversion results. In this paper, the initial wave impedance modeling method based on plane-wave destruction (PWD) is proposed, the wave impedance information is extrapolated by using of the predict relationship between the traces which is derived from the plane-wave destruction equation, and the Tikhonov regularization is introduced to improve the stability and noise resistance ability of the method. No longer like the traditional modeling methods which need the fine horizon and fault interpretation results, the method in this paper is a seismic data-driven modeling method, the initial model which has a good consistency with the geological rules can be directly established by using of seismic data and well-log properties. The effectiveness of the method is demonstrated by model data test and field data application.