Attenuation of surface-related multiples for single-channel seismic survey in offshore engineering
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View abstract on PubMed
Summary
This summary is machine-generated.This study presents a new method to suppress surface-related multiple waves in single-channel marine seismic data. The technique improves geological interpretation by accurately predicting and removing wave interference, even with complex seafloor conditions.
Area Of Science
- Geophysics
- Marine Seismic Exploration
Background
- Single-channel marine seismic profiling is crucial for offshore geological surveys.
- Surface-related multiple wave interference significantly hinders accurate seismic data interpretation.
- Existing methods struggle with suppressing these multiples, especially under challenging seafloor conditions.
Purpose Of The Study
- To develop an effective method for attenuating surface-related multiples in single-channel marine seismic data.
- To establish a robust technical system for multiple wave suppression.
- To address the challenge of predicting multiple wave periods with undulating seafloor.
Main Methods
- Integrating first-break arrival times of primary reflections and multiples to determine multiple wave periods.
- Employing multi-iterative predictive deconvolution to accurately predict and attenuate multiples.
- Applying the method to single-channel marine seismic data from the South China Sea.
Main Results
- Successfully obtained accurate prediction step sizes for multiples even with undulating seafloor.
- Achieved effective attenuation of surface-related multiples, overcoming noise and picking inaccuracies.
- Demonstrated good application results on real-world seismic data.
Conclusions
- The developed method provides a fast, efficient, and economical solution for suppressing surface-related multiples.
- This technique enhances the reliability of geological information derived from single-channel marine seismic data.
- The study establishes a valuable technical system for marine geophysical exploration.
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