PDF(11178 KB)
Fracture detection method of messy body attribute based on multichannel synchro squeezing generalized S-transform
Huan WEN, Zhen WANG, LiMing DING, Jie LI, TianWei DU, Kui ZHANG, QunWu WANG
Prog Geophy ›› 2025, Vol. 40 ›› Issue (3) : 992-1003.
PDF(11178 KB)
PDF(11178 KB)
Fracture detection method of messy body attribute based on multichannel synchro squeezing generalized S-transform
Due to the limitation of the resolution of traditional time-frequency analysis algorithm, the energy of time-frequency spectrum diverges when seismic data are converted from time domain to time-frequency domain. The generalized s-transform of multi-channel synchronous extrusion has high time-frequency focusing ability, which can keep fracture information as much as possible and reduce time-frequency error when seismic data are transformed from time domain to time-frequency domain, then the fracture identification in time-frequency domain is carried out. The low frequency band of seismic data is advantageous to Kingdom of Dali-scale fault identification, while the high frequency band of seismic data is advantageous to the identification of small faults. Therefore, the fault identification algorithm based on time-frequency domain can characterize the fault information of different scales. In this paper, the technique of clutter detection and multi-channel synchronous squeezing generalized s-transform are combined to carry out fault identification of seismic data. The theoretical model and the single-channel signal show that the generalized s-transform algorithm of multi-channel synchronous extrusion has high time-frequency focusing ability, the micro-fractures can also be well characterized.
Time-frequency analysis / Multichannel synchro squeezing generalized S-transform / Time-frequency resolution / Disorder body attribute
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感谢审稿专家提出的修改意见和编辑部的大力支持!
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