Seismic multi-scale inversion in the frequency domain based on smooth model constraint
Li Kun, Yin Xingyao, Zong Zhaoyun
1. School of Geosciences, China University of Petroleum (East China), Qingdao, Shandong 266580, China;
2. Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, Shandong 266071, China
Abstract:Using partial frequency components of band-limited seismic data, an inversion in the frequency domain yields stratigraphic impedance information. In view of high resolution in the frequency domain inversion and band-limited characteristics of seismic signals, we consider jointly the frequency domain inversion theory and Bayesian framework, and propose a robust seismic multi-scale inversion method with smooth model constraint in the frequency domain. With smooth model constraint, this method not only enhances low frequency compensation, but also improves noise removal and lateral continuity of the inversion. Since decoupling different frequency component decoupling of seismic gathers can be realized in the frequency domain, successive iterations of different frequency components can obtain the optimal solution of the inverse problem. Tests on stationary, non-stationary models, and seismic data demonstrate the feasibility and stability of our proposed method.
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Li Kun, Yin Xingyao, Zong Zhaoyun. Seismic multi-scale inversion in the frequency domain based on smooth model constraint. OGP, 2016, 51(4): 760-768.
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