海洋天然气水合物的分解释放对全球气候的影响  

EFFECTS OF THE METHANE DECOMPOSING AND RELEASING FROM THE MARINE GAS HYDRATE ON GLOBAL CLIMATE CHANGE

作　　者：车瑞俊[1] 李京[1] 

机构地区：[1]中国地质大学能源学院

出　　处：《钻采工艺》2007年第5期135-138,共4页Drilling & Production Technology

摘　　要：低温高压背景下的海底和陆地永久冻土地带蕴藏着大量自然形成的天然气水合物,而且天然气水合物的笼形晶体结构中充填着高比例的甲烷,从而被视作潜在的替代能源而受到世界各国的重视。随着对天然气水合物研究的逐渐深入,人们意识到天然气水合物的分解释放有可能会对全球气候产生巨大影响。通过对海洋天然气水合物的形成模式、其分解进入大气圈的方式以及天然气水合物对环境变化的反馈机制的研究,分析了海洋天然气水合物分解释放进入大气圈并影响全球气候的可能性。Large amount of natural gas hydrates occurs in seafloor and continental frozen soil under the conditions of low temperature and high pressure. And gas hydrates is compounds in which much molecules of methane gas is trapped in crystalline cells. Nowadays many countries pay more attention to gas hydrates which is considered as a potential energy source for the 21st century. However, further studies indicate that methane dissociated and releasing from the marine gas hydrates may exert a significant influence on global climate change. The forming modes of marine gas hydrates, their releasing ways into atmosphere cycle and the feedback mechanism of gas hydrates on the environmental changes are presented in this paper,and the possibility of methane releasing from marine gas hydrates going into atmosphere cycle and that of their effects on global climate change are analyzed.

关 键 词：天然气水合物 海底甲烷 分解 释放 全球气候 

分 类 号：X16[环境科学与工程—环境科学] P744.4[天文地球—海洋科学]