Seismic data event detection method based on visual cognition environment suppression and contour combination model
A technology of seismic data and detection methods, applied in the field of seismic exploration, can solve problems such as difficult to solve event processing problems, and achieve the effect of reducing response
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[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0042] Events are defined as the connection of phase peaks (peaks or troughs). Event picking is the basis of seismic interpretation and can be used for sequence stratigraphy research, reservoir prediction and reservoir feature extraction. The present invention performs event picking based on pre-stack seismic data. Pre-stack seismic data contains richer information than post-stack seismic data. It has not been stretched and stacked by NMO, and the amplitude and frequency information is not damaged, which can reflect some subtle formation characteristics. , but its disadvantage is low signal-to-noise ratio and large noise. Therefore, the present invention proposes a high-precision event picking method for the low signal-to-noise ratio of pre-stack seismic data, such as Figure 10 shown;
[0043] First, the seismic data are preprocessed, the pr...
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