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METHODS USING TRAVEL-TIME FULL WAVEFORM INVERSION FOR IMAGING SUBSURFACE FORMATIONS WITH SALT BODIES.
METHODS USING TRAVEL-TIME FULL WAVEFORM INVERSION FOR IMAGING SUBSURFACE FORMATIONS WITH SALT BODIES.
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机译:使用旅行时全波形反演对盐体成像的方法。
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摘要
Methods and devices use improved FWI techniques for seismic exploration of subsurface formations including salt bodies using a travel-time cost function. In calculating the travel-time cost function, time-shifts may be weighted using cross-correlation coefficients of respective time-shifted recorded data and synthetic data generated based on current velocity model. The improved methods enhance the resulting image while avoiding cycle-skipping and issues related to amplitude difference between synthetic and recorded data.
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