天然气水合物相平衡影响因素研究

A review on researches on factors affecting gas hydrate phase equilibrium

天然气水合物(NGH)是21世纪继常规石油和天然气能源之后最具开发潜力的清洁能源,NGH相平衡条件是NGH形成及稳定存在的必要条件,同时对NGH的开发、运输、储存有着重要的理论价值和现实意义。总结了包括气体成分、孔隙水组成、孔隙半径、微波、表面活性剂等影响NGH相平衡因素的研究成果,探索分析了NGH相平衡关系理论模型,介绍了Dickens和Quinby的相平衡公式。研究表明天然气水合物相平衡条件是各种因素综合作用的结果。

Natural gas hydrate （NGH） is the most potential for development of clean energy following the conventional oil and gas energy in 21st century, and phase equilibrium conditions of NGH are necessary for NGH formation and stable existence, which are important in both theory and practice of NGH exploration, transportation and storage. The researches on the factors affecting NGH phase equilibrium, including the compositions of gas and pore water, pore radius, microwave, surfactants, etc., were summarized. The NGH phase equilibrium theoretical model was discussed, and the phase equilibrium formula of Dickens and Quinby was described. The research results indicated that NGH phase equilibrium conditions are the results of combined action of va：rious factors.