多孔介质中气体水合物相平衡研究进展  

RESEARCH PROGRESS OF THE PHASE EQUILIBRIUM OF GAS HYDRATES IN POROUS MEDIA

作　　者：李金平[1] 梁德青[2] 郭开华[2] 樊栓狮[2] 王如竹[1] 

机构地区：[1]上海交通大学低温制冷研究所 [2]中国科学院广州能源研究所

出　　处：《石油与天然气化工》2004年第5期315-319,共5页Chemical engineering of oil & gas

基　　金：国家自然科学基金重点项目 (NO .598362 30 );国家重点基础研究项目 (G2 0 0 0 0 2 630 6)资助

摘　　要：自然条件下天然气气体水合物的平衡条件对估算气体水合物储量 ,确定海底天然气水合物的稳定区域 ,得到气体水合物生成、分解速率非常重要。针对整块气体水合物相平衡条件的实验测定和预测模型无法准确确定自然条件下气体水合物的平衡条件 ,目前一些学者对多孔介质中气体水合物的平衡条件进行了实验测定工作 ,并先后建立了多个理论预测模型。文中详述了多孔介质中气体水合物相平衡条件的实验测定和理论预测模型 ,讨论了实验测定和理论预测模型尚待完善和改进的地方 ,提出了未来多孔介质中气体水合物相平衡条件研究的主要方向。The equilibrium conditions of natural gas hydrates are important for estimating the total amount of gas hydrate fields,locating the bottom of the gas hydrate stabili-ty zone(BGHS),and establishing the formation/dissociation rates of gas hydrates.Since the experimental determination and the theoretical predication of the phase equilibrium con-ditions of bulk hydrates could not lead to accurate phase e-quilibrium conditions of gas hydrate in deep oceans and per-mafrost regions,lots of experiments have been carried out and theoretical models have been established on the phase e-quilibrium conditions of gas hydrate in porous media.In this paper,the experimental determination of the phase equilibri-um conditions of hybrates and the theoretical model of pre-dicting the phase equilibrium conditions in porous media are comprehensively stated in detail,further improvement of these experiments and models are discussed,and the major study trend of the phase equilibrium of hydrates in the future is also proposed.

关 键 词：气体水合物 多孔介质 研究进展 相平衡 海底天然气水合物 平衡条件 预测模型 实验测定 自然条件 稳定区域 分解速率 物相 

分 类 号：P744[天文地球—海洋科学]