A Fast and Efficient Common Conversion Point Stacking Technique for Converted Waves
Autor: | Zai-Tian Ma, Shi-Yong Xu |
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Rok vydání: | 2002 |
Předmět: | |
Zdroj: | Chinese Journal of Geophysics. 45:580-592 |
ISSN: | 0898-9591 |
DOI: | 10.1002/cjg2.271 |
Popis: | Common conversion point (CCP) binning and non-hyperbolic normal moveout (NMO) are two key points to CCP stacking for converted waves. The accuracy of present methods is too low to be used for shallow-middle depth events or for large offsets. Through a detailed study on CCP stacking technique, we derived new formulas for CCP correction and non-hyperbolic time-distance relationship, and gave an implementation of CCP binning. The synthetic model test and real data processing show that our method is accurate and easy to be implemented. The stacked amplitudes are also preserved well even for shallow-middle depth events with large source-receiver offsets. |
Databáze: | OpenAIRE |
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