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Methods and Systems for Deghosting Marine Seismic Wavefields Using Cost-Functional Minimization
Methods and Systems for Deghosting Marine Seismic Wavefields Using Cost-Functional Minimization
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机译:使用成本函数最小化对海洋地震波场进行去鬼影的方法和系统
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摘要
Computational systems and methods to be carried out by the computational systems for determining streamer-depth bias during exploration-seismology experiments are disclosed. In one aspect, the method computationally transforms recorded wavefield data from the space-time domain to a wavenumber-frequency domain and computationally deghosts the wavefield data in the wavenumber-frequency domain. The deghosted wavefield data may then computationally transformed from the wavenumber-frequency domain back to the space-time domain and stored. The computational methods include iterative minimization of a cost functional in the wavenumber-frequency domain.
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