模拟混相驱动态的拟四组分模型

通常模拟混相驱动态采用组分模型,由于组分模型求解工作量大,计算速度慢,要求输入的参数较多,而这些参数很难取全取准,同时组分模型不易被油藏工程师所掌握。因此,介绍了一种模拟混相驱动态的模拟模型,该模型是在黑油模型基础上发展起来的拟四组分模型,它兼有黑油模型和多组分模型的某些优点,如黑油模型的稳定性好和计算速度快、组分模型的可模拟凝析气藏和混相驱等;给出了数学模型及各种物理参数以及混相流体性质的处理方法。该模型还以SPE为例进行计算,结果与SPE的结果一致,从而验证了本模型的可靠性。

PSEDOCOMPOSITIONAL MODEL FOR MISCIBLE FLOODING

As a usual, compositional model is used to simulate miscible flooding. However, because of its slow calculation and much data difficult to be got, it is not very easy to use by reservoir engineers. So this paper introduces a simulation model for miscible flooding. It is a developed pseudocompositional model based on conventional black oil model, and it has good stability and fast calculation of black oil model, and also has the compositional model characteristic such as simulation of condensate gas reservoir and miscible displacement etc. In addition, the paper presented the mathematical model and the approach to deal with different physical parameters and fluid properties. The model was used to verify the SPE example, it proved to be true.