AVO inversion and interpretation based on prestack depth migration
Aiming at the difficulties of applying AVO technique to complex structure areas,in the premise of clarifying the important significance of migration technique on AVO analysis effect improvement,in order to achieve the effective AVO research in complex structure area,this paper introduceed prestack depth migration into the AVO process for the purpose of improving the prestack data quality.AVO inversion based on this was performed to acquire multiple AVO attribute parameters which reveal the variable characters of lithology or pore fluid.At the same time,this paper also probed into the method of determining and interpreting AVO anomaly using the integrated analysis of multiple AVO attributes.Applying this proposed complex structure research method to analyze the practical seismic data,and the acquired result illustrates the feasibility of this method.
This study investigates the effects of Pierson-Moskowitz, Jonswap spectrum that are typical irregular wave spectrums for wind turbine system with jacket support structure. Also various offshore environmental parameters based on korean local condition were used in our study. The loads acting on the system was considered by referring to the Design Load Case from IEC guide line. And improved von Karman model was used as a turbulence model. As a result, various significant wave height and peak spectral period cause noticeable difference of extreme and fatigue loads prediction.