天然气水合物生成条件的测定和计算

Measurement and calculation of hydrate formation conditions for natural gases

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.

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.