Foundation of Geochemical Prospecting Method Applying to Gas Hydrate Prospecting

Geoscience ›› 2005, Vol. 19 ›› Issue (1): 61-66.

• Engineering Geology and Environmental Geology • Previous Articles Next Articles

Foundation of Geochemical Prospecting Method Applying to Gas Hydrate Prospecting

NIU Bin-hua¹ ,SUN Chun-yan², SU Xin³, ZHAO Ke-bin⁴ , WU Neng-you⁵, LI Jia¹, WANG Hong-yu⁶

1School of Geophysics and Information Technology，China University of Geosciences，Beijing100083，China;
2School of Engineering and Technology，China University of Geosciences, Beijing100083,China;
3School of Marine Geosciences, China University of Geosciences, Beijing100083, China;
4Institute of Petroleum Geochemical Prospecting ,SINOPEC , Hefei, Anhui230022,China;
5Guangzhou Marine Geological Survey, Guangzhou, Guangdong510760,China;
6School of Energy Resources, China University of Geosciences, Beijing100083,China;

Received:2005-12-03 Revised:2005-01-17 Online:2005-01-20 Published:2005-01-20

Abstract

Abstract:

It is always concerned that whether the geochemical prospecting can be applied to the study of the solid form of the hydrate medium deposited in porous sedimentary stratum. This study discussed the application of geochemical prospecting from 3 aspects: (1) the fact of hydrocarbon microseepage provided by the geology and seismic exploration of hydrate，(2) the hydrate geochemical prospecting theory, the Xisha Trough geochemical prospecting and the geochemical analysis results of ODP leg 204 hydrate drilling samples，and (3) the geochemical practice in the researching zone of the South China Sea. The results show that the geochemical prospecting can provide the favorable evidences of hydrate existence from the distribution of trace elements of the seafloor sediments.

Key words: geochemical prospecting, hydrocarbon microseepage, gas hydrate

CLC Number:

P539.2

NIU Bin-hua,SUN Chun-yan,SU Xin,ZHAO Ke-bin,WU Neng-you,LI Jia,WANG Hong-yu. Foundation of Geochemical Prospecting Method Applying to Gas Hydrate Prospecting[J]. Geoscience, 2005, 19(1): 61-66.

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Foundation of Geochemical Prospecting Method Applying to Gas Hydrate Prospecting

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