将PT状态方程应用于固体溶质在含夹带剂超临外流体中的溶解度的计算。对溶质的物理性质、方程参数及二元交互作用参数的影响进行了较详细的讨论。在此基础上建立了一个新的立方型状态方程参数的混合规则,将该混合规则与PT状态方程相结合计算固体溶质在有无夹带剂超临界流体中的溶解度较采用传统的van der Waals混合规则计算的结果有较大改进。该混合规则在低压下溶质溶解度较低时可恢复到van der Waals混合规则。
Liquid viscosities of reservoir crude oils of Fuyu and Huabei in China were measured at six temperatures and high pressures.The semitheoretical viscosity model developed by the authors for pure liquids was successfully extended to reservoir crude oil systems by applying simple empirical mixing rules. A Comparison of the viscosities predicted with the proposed model and those predicted with the commercial software package-STATPACK has been presented significant improvement was obtaived by LVIS.
