Abstract: Hydrate formation conditions of four natural gases in pure water were measured in a sapphire cell using the “pressure search”method. The experiment temperature range was 274.15 K—284.15 K,and the pressure was 1.04—7.05 MPa.The Chen-Guo hydrate model was used to calculate the hydrate formation conditions of these four natural gases.The average deviation of calculated values to experimental ones was only 0.75%.Good agreement between experimental data and calculated values was achieved.The obtained experimental data are valuable for designing an industrial process to transporting natural gases.

摘要： 利用全透明蓝宝石水合物静力学实验装置，测定了4种塔里木油田天然气在纯水中的水合物生成条件.将Chen-Guo 水合物模型应用于天然气水合物生成条件的计算，实验测定的4种天然气水合物生成条件的计算结果和实验结果符合得很好.