Sub-basalt seismic imaging in southeastern Greenland,Arctic
WU Qilin1, LIU Quanwen1, FANG Zhongyu2, ZHANG Wen3, LIU Jinpeng2, ZHANG Zhizhong2
1. College of Petroleum Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000, China;
2. Tepu, GEO-COSL, CNOOC, Zhanjiang, Guangdong 524057, China;
3. CNOOC International Limited, Beijing 100027, China
Abstract：Volcanic basalts are widely distributed in JMY area of southeastern Greenland,Arctic.It is often compromised in sub-basalt imaging.Numerical simulation results show that low frequency is useful for geometrical characteristics and physical properties of the Mesozoic sediments,which are covered by Eocene and Oligocene basalt.The ana-lysis results are used to guide the processing of broadband seismic data and protect low frequencies signal of deeper reflectors.It is noticeable that the data quality of deep data is improved by broad-band recording through ghost elimination.The results provide a more relieable interpretation,which reveal the thickness and distribution of Mesozoic sediments source,is conducive to the hydrocarbon exploration.
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