Geological and Geophysical Conditions for Potential Natural Gas Hydrate Resources in Southern South China Sea Waters  

作　　者：刘海龄 姚永坚 邓辉 

机构地区：[1]CAS Key Lab of Marginal Sea Geology,South China Sea Institute of Oceanology,Chinese Academy of Sciences [2]Institute of Development Strategies for Marine Geoscience,Guangzhou Marine Geological Survey [3]SINOPEC International Petroleum Exploration & Production Corporation

出　　处：《Journal of Earth Science》2011年第6期718-725,共8页地球科学学刊（英文版）

基　　金：supported by the National Basic Research Programs of China (973 Programs) (Nos. 2009CB2194 and 2007CB411700);the National Natural Science Fundation of China (Nos. 40976029 and 40676039);the Major Knowledge Innovation Program of Chinese Academy of Sciences (No. kzcx2-yw-203-01);the National Program of Sustaining Science and Technology (No. 2006BAB19B00);the Ministry of Land and Resources, China (Nos. GT-YQ-QQ-2008-1-02 and 2009GYXQ06)

摘　　要：The water depth in Nansha（南沙） waters,which is located in the southern South China Sea,varies from 200 to 2 500 m,with a deep-water（500 m） area of 500 000 km2.In this region,there are many depositional basins with various structural features,prone to the accumulation of organic material.The temperature and pressure conditions in the deep-water environment are suitable for the preservation of gas hydrate.At several sites,we have recognized bottom-simulating reflectors（BSRs） from seismic data.Regional geology analyses show that the Nansha waters may have abundant gas hy-drate prospects,especially in localities such as the Nansha trough and other deep-water basins of the central Nansha waters.The water depth in Nansha（南沙） waters,which is located in the southern South China Sea,varies from 200 to 2 500 m,with a deep-water（500 m） area of 500 000 km2.In this region,there are many depositional basins with various structural features,prone to the accumulation of organic material.The temperature and pressure conditions in the deep-water environment are suitable for the preservation of gas hydrate.At several sites,we have recognized bottom-simulating reflectors（BSRs） from seismic data.Regional geology analyses show that the Nansha waters may have abundant gas hy-drate prospects,especially in localities such as the Nansha trough and other deep-water basins of the central Nansha waters.

关 键 词：natural gas hydrate BSR geological and geophysical condition southern South China Sea. 

分 类 号：P618.13[天文地球—矿床学]