Prestack Depth Migration Processing and Interpretation of 2D Seismic Data in Kedong Tectonic Zone, Southwest of Tarim Basin

Abstract

Abstract: The earth's surface of Kedong tectonic zone is deep loess tableland, the seismic data has an extremely low signal to noise ratio and serious static correction problem. Its complex structure superposition makes the velocity change so violent that it's hard to get accurate imaging. We take full advantage of multiple seismic data processing system and take the study thought of joint processing and interpretation in imaging research.We effectively improve the quality of seismic imaging by taking advantage of wide-line static correction technology,multi-domain prestack noise attenuation technology, common reflection stack technology and fluctuant surface prestack deep migration technology. We further indicate the structural characteristics of the tectonic zone and confirm several favorable traps by fine interpretation research

Key words: loess tableland, static correction, fluctuant surface, prestack depth migration, Kedong tectonic zone

CLC Number:

P631.44

Zhou Yi, Li Daoshan, Shi Jun, Cheng Jianbing, Cui Yongfu and Li Qiang. Prestack Depth Migration Processing and Interpretation of 2D Seismic Data in Kedong Tectonic Zone, Southwest of Tarim Basin[J]. China Petroleum Exploration, 2011, 16(Z1): 14-18,48,171.

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Prestack Depth Migration Processing and Interpretation of 2D Seismic Data in Kedong Tectonic Zone, Southwest of Tarim Basin

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