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Fine Complex Geological Structure Interpretation Based on Multiscale Seismic Dip Constraint
Zhenhua Zhang1, Zhenan Yao2, Pan Wang3
1College of Geoscience and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China.
Computational Intelligence and Neuroscience
|March 7, 2022
Summary
This study introduces a multiscale seismic dip constraint geological structure interpretation method. It enhances seismic data processing to improve the accuracy of complex geological structure interpretation, especially for subsalt signals.
Area of Science:
- Geophysics
- Seismic Exploration
- Geological Interpretation
Background:
- Traditional geological interpretation accuracy is reduced by noise and weak subsalt signals.
- Reliance on single seismic data limits interpretation refinement.
Purpose of the Study:
- To propose a novel multiscale seismic dip constraint geological structure interpretation technical process.
- To enhance the accuracy of geological structure interpretation in seismic data.
Main Methods:
- Utilized basis tracking spectrum decomposition for time-frequency domain conversion.
- Applied multiscale decomposition (coarse, fine, deliberate scales) using window and threshold methods.
- Integrated Hilbert transform for local layer dip calculation and attribute fusion.
Main Results:
- Successfully removed high-frequency noise interference through multiscale time-frequency decomposition.
- Enhanced subsalt seismic weak signals, improving signal-to-noise ratio.
- Achieved high-precision fine complex geological structure interpretation with seismic dip constraints.
Conclusions:
- The proposed multiscale seismic dip constraint geological structure interpretation is effective.
- The technique can be widely applied to field seismic data interpretation.
- It overcomes limitations of traditional methods in complex geological settings.
