全球与区域天然气水合物中天然气资源量估算  

The global and regional estimation of gas resource quantity in gas hydrates

作　　者：王淑红[1] 宋海斌[2] 颜文[1] 

机构地区：[1]中国科学院南海海洋研究所与广州地球化学研究所边缘海地质重点实验室 [2]中国科学院地质与地球物理研究所

出　　处：《地球物理学进展》2005年第4期1145-1154,共10页Progress in Geophysics

基　　金：中国科学院知识创新工程重要方向项目(KZCX3-SW-219KZCX3-SW-224KGCX2-SW-309);中国科学院南海海洋研究所创新领域前沿项目(lyqy200312)

摘　　要：天然气水合物作为未来的一种替代能源引起了国内外很多研究者的关注,他们从不同的方面对天然气水合舷物进行了研究.随着研究的深入,许多研究者发现,全球天然气水合物中天然气资源量并没有最初认为的那么多,而且相差了几个数量级,这就大大降低了天然气水合物在未来能源中的地位.本文的研究目的是通过分析全球天然气水合物中天然气资源量的估算方法,归纳总结有关全球及区域估算天然气水合物中天然气资源量的文献,使人们对天然气水合物有个重新的认识,同时为未来的能源勘探开发提供一定的参考.通过分析我们发现全球天然气水合物中天然气资源量的估算值随着人们对天然气水合物认识程度的增加而降低;而且目前能够较准确反映全球海洋天然气水合物中天然气资源量的估算值是(1～5)×1015m3(大约500～2 500Gt甲烷碳).我们通过总结国外及国内几个典型区域的天然气资源量估算值还发现,国外研究者主要是根据钻孔及BSR资料确定用于计算天然气资源量的参数,使得计算结果较符合实际;而国内的学者基本是使用模拟计算及假设的方法确定各种参数,估算值仍存在很大差异,因此,我们认为只有获得实测数据才能使国内的估算结果更加接近实际.Many researchers are interested in gas hydrate because it is considerecl as a potential resource in They have studied gas hydrate from different aspects. As more research as many authors were carried out, the global estimation of hydrate-bound gas in the marine is not as much as original estimatesd, and there were several orders of magnitude lower. The result diminished the role of gas hydrate in the future resource structure. This article analyzed the computation method of gas in gas hydrates and summarizes the references of gas resource estimation. The purpose is to make people understand gas hydrates well and provides reference for resource exploration and development in the future. We found that the global estimate of hydrate-bound gas decreased along with the increase of the knowledge gas hydrate. The estimate that best reflected the current knowledge of submarine gas hydrate is in the range （1-5） 10^-5 m^3 （ -500～2 500 Gt of methane carbon）. We found that the foreign researchers used parameters for calculation of the gas volume based on drilling and BSR information. Their results were close to practice. But the domestic authors used these parameters based on assumptions. There is big difference among their results. We think the domestic estimates could be closer to reality if more field data were obtained.

关 键 词：天然气水合物 甲烷 资源量 全球估算 区域估算 

分 类 号：P631[天文地球—地质矿产勘探]