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《Progress in Geophysics》 2007-06
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Seismic data processing and seismic attributes of gsa hydrate offshore southwestern taiwan

XU Sheng-hui1,4,5,DENG Hui4,YAN Pin2,3,LIU Hai-ling2(1.Institude of Geology and Geophysics,CAS,Beijing 100029,China;2.Key Laboratory of MarginalSea Geology,South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry,CAS,Guangzhou 510301,China;3.Guangzhou Center for Gas Hydrate Research,CAS,Guangzhou 510640,China;4.Sinopec International Petroleum Exploration and Production Corporation,Beijing 100083,China;5.Graduate School of CAS,Beijing 100049,China)  
Various seismic attributes of gas hydrate were obtained in the acretionary prism of the southwest Taiwan Waters by seismic imaging,velocity analysis,AVO analysis and AVO inversion with the long streamer seismic data.BSR is found with reversed polarity,compared with the seabed,and to cut across the sediments reflectors in the migrated profiles.AVO analysis shows that the amplitude of the BSR increases with the offset The low p-wave interval velocity layer is present below the strong BSR according to detailed velocity analysis.The BSRs value is relative high negative and lies in the third quadrant in the crossplot of the P and G profiles within the strong BSR.The BSRs value is also negative in the P+G profile and it is approximate zero in the P-G profile in the same strong BSR.All the seismic characters above suggest that the gas hydrated layer and the free gas layer below it may be in existence in the southwest Taiwan Waters.
【Fund】: 中国科学院知识创新工程重要方向项目(KZCX2-YW-108、KZCX2-YW-203);; 863项目(2006AA09A101-0201)联合资助
【CateGory Index】: P744.4
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Chinese Journal Full-text Database 1 Hits
1 DENG Hui~(1,2), YAN Pin~(1,3), LIU Hai-ling~1(1.Key Lab. of Marginal Sea Geology, South China Sea Institute of Oceanology & Guangzhou Institute of Geochemistry, CAS, Guangzhou 510301, China; 2. Guangzhou Institute of Geochemistry, CAS, Guangzhou 510640, China; 3. Guangzhou Center for Gas Hydrate Research, CAS, Guangzhou 510640, China);AN ANALYSIS ON BOTTOM SIMULATING REFLECTORS IN SOUTHWEST TAIWAN SEA AREA[J];Journal of Tropical Oceanography;2005-02
Chinese Journal Full-text Database 4 Hits
1 DENG Xi-guang,WU Lu-shan,FU Shao-ying,WU Neng-you(Guangzhou Marine Geological Survey,Guangzhou 510760,China);The research advances of natural gas hydrates in northern South China Sea[J];Journal of Marine Sciences;2008-02
2 ZHANG Hong-tao1, ZHANG Hai-qi1, ZHU You-hai2 (1. China Geological Survey, Beijing 100011, China; 2. Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China);Gas hydrate investigation and research in China: Present status and progress[J];Geology in China;2007-06
3 CHEN Zhi-hao1,2,3,WU Neng-you1,2,LI Jia-biao3 (1.Guangzhou Institute of Energy Conversion,Key Laboratory of Renewable Energy and Gas Hydrate,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China;2.Guangzhou Center for Gas Hydrate Research,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China;3.Key Laboratory of Submarine Geosciences,the Second Institute of Oceanography,State Oceanic Administration,Hangzhou,Zhejiang 310012,China);Pathway of Fluid Migration for Gas Hydrate in the Accretionary Wedge of Manila Subduction Zone,Northeastern South China Sea[J];Geoscience;2010-03
4 YAO Yantao,ZHAN Wenhuan(CAS Key Laboratory of Marginal Sea Geology,South China;Sea Institute ofOceanology,Chinese Academy of Sciences,Guangzhou 510301,China);Application of Fractal to the Relations between Faults and Gas Hydrate on the Northern Continental Slope of the South China Sea[J];Acta Scientiarum Naturalium Universitatis Sunyatseni;2009-05
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1 SONG Hai-Bin~1,WU Shi-Guo~2,JIANG Wei-Wei~1 1 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China 2 Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;The characteristics of BSRs and their derived heat flow on the profile 973 in the northeastern South China Sea[A];[C];2008
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 SONG Hai bin 1,2 MATSUBAYASHI Osamu 2 (1.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100101, China; 2.Geological Survey of Japan, Tsukuba 3058567, Japan);A SUMMARY OF GAS HYDRATE RESEARCHES IN ADJACENT SEA REGIONS AROUND JAPAN ESPECIALLY THE NANKAI TROUGH[J];Progress In Geophysics;2001-02
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