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现代地质 ›› 2005, Vol. 19 ›› Issue (1): 61-66.

• 天然气水合物勘查方法 • 上一篇    下一篇

勘查地球化学方法适用于勘查天然气水合物的依据

牛滨华1,孙春岩2,苏新3,赵克斌4,吴能友5,李佳1,王宏语6   

  1. 1中国地质大学 地球物理与信息技术学院,北京100083;2中国地质大学 工程技术学院,北京100083 ;
    3中国地质大学 海洋学院,北京100083;4中国石油化工股份有限公司 石油化探研究所,安徽 合肥230022;
    5广州海洋地质调查局,广东 广州510760;6中国地质大学 能源学院,北京100083
  • 收稿日期:2005-12-03 修回日期:2005-01-17 出版日期:2005-01-20 发布日期:2005-01-20
  • 作者简介:牛滨华,男,教授,博士生导师,1952出生,应用地球物理学专业,主要从事以地震和化探为主的综合勘查技术及方法的研究工作。
  • 基金资助:

    国家自然科学基金项目(40474043);国家“863”计划项目(2001AA611020);国家“973”计划项目(G200046705)

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. 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

摘要:

人们一直关注勘查地球化学(即化探)方法能否适用于以固体形式赋存于孔隙沉积地层中的水合物介质。从水合物地质学和水合物勘探地震学提供的烃类物质微渗漏的事实、水合物化探自身理论和国际ODP 204航次水合物钻井样品的地球化学分析结果以及南海水合物研究区的化探实践3个方面探讨并阐述了勘查地球化学方法在水合物勘查中的适用性,化探方法能够从海底沉积物的痕量化学组分的分布上追踪水合物存在的有利证据。

关键词: 勘查地球化学方法, 烃类物质微渗漏, 天然气水合物

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

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