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In recent years, waveform inversion is one of the hot methods because it can provide sub-wavelength images. In the inversion of field data, waveform inversion requires a good estimation of the source wavelet to reach the global convergence. Traditional method is that the source wavelet is added into the inversion as a new unknown parameter and updated with iterations. When the results of inversion...
Reverse-time migration (RTM) is used to handle complex velocity models including steeply dipping interfaces and dramatic variations in transverse velocity, which promises better imaging results compared with traditional migration methods such as Kirchhoff migration algorithm. RTM has been increasingly used in oil and gas seismic exploration. Based on the similarity of kinematics and dynamics between...
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